altro whiterock installation guide

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TECHNICAL>TRAINING ACADEMY>WALLS INSTALL GUIDE

Altro Whiterock Installation guide

Introduction to Altro Whiterock™

Updated 05/30/19

Altro Whiterock Installation guide 2

This publication is designed to provide technical information to assist in the installation

of Altro Whiterock. Except where noted, this information applies to the complete range

of Altro Whiterock products.

The recommendations herein are derived from actual field and laboratory testing by

Altro’s technical specialists. The procedures are widely accepted in the wall covering

industry.

Install Altro Whiterock according to the definition of standards in this guide. Any

deviations from this definition of standards are to be attempted solely at the risk of

those specifying or attempting the actual installation, and are not the responsibility of

Altro or its distributors.

Bidding and installation of any Altro Whiterock should only be undertaken by

professional installers versed in the required tools and techniques for professional

installations. Failure to correctly install Altro Whiterock will void the Limited Product

Warranty.

Technical Department Our technical department, product knowledge and walling expertise is what sets Altro

apart from our competitors. We are here for you every step of the way from planning,

through installation and even maintenance for the expected life of the surface.

Michael Hafferty

USA

[email protected]

Brad Schaible

USA

[email protected]

Nick Stein

USA

[email protected]

John Loupelle

Canada

[email protected]

Lesley Da Silva

Internal Support

[email protected]

800.377.5597 ext. 3239

Skip Johnson

Technical Manager

[email protected]

Chris Kephalas

General Manager

[email protected]

Join us at the Altro Training Academy!

The goal of the Altro training academy

is to train and qualify a network of

professional installers who wish to

become part of a specialized group of

recommended Altro installers and fitters.

Altro stands behind our installers and

always recommends that customers use

Altro trained installers.

Three training centers

• Wilmington, MA USA

• Santa Fe Springs, CA USA

• Mississauga, ON, CAN

Course content

• Product overview

• Pre-installation

• Installation practices

• Thermoforming

• Adhesives, tapes, sealants

• Heat welding

• Joining accessories and methods

• Floor to wall transitions

• Detailed installation techniques

Contact Lesley for more information or to register for a class!

3 Contents

Contents of installation guide

Chapter 1

Introduction 4

1.1 Safety procedures 5

1.2 Altro Whiterock product overview 5

1.3 Limitations of Altro Whiterock 6

1.4 Installation tools + equipment 6

Chapter 2

Pre-installation 7

2.1 Preparation 8

2.2 Job-site conditions 9

2.3 Making your work table 9

Chapter 3

Installation practices 10

3.1 General installation instructions 11

3.2 Thermoformer 12

3.3 Measuring for bends 13

Chapter 4

Adhesives, tapes and sealants 14

4.1 Adhesives 15

4.2 Tapes 16

4.3 Sanitary sealant 16

Chapter 5

Jointing methods 17

5.1 Heat welding system 18

5.2 Joint strips 20

5.3 Two-part joint strip 20

5.4 One-part joint strip 21

5.5 1” Double-sided tape with joint strips 23

Chapter 6

Floor-to-wall transitions 24

6.1 Floor to wall overlap transition 25

6.2 Floor to wall heat welded transition 26

6.3 Installation over epoxy 27


6.5 Connecting to flash cove with a two-part joint strip 28

6.6 One-part concealed transition trim 29

6.7 Fitting to quarry tile base 32

Chapter 7

Additional details and maintenance 33

7.1 Wainscot installation 34

7.2 Door, window and pipe installation 34

7.3 Installation over ceramic tile 35

7.4 Terminating Altro Whiterock at true ceiling wall intersection 35

7.5 Terminating Altro Whiterock at drop ceiling grid 36

7.6 Terminating Altro Whiterock above a drop ceiling grid 36

7.7 Adhering directly to the ceiling using heat welding method 37

7.8 Adhering directly to the ceiling using two part joint strip method 38

7.9 Altro Whiterock maintenance 39

Introduction 4

Notes

Topics

1.1 Safety procedures 5

1.2 Altro Whiterock product overview 5

1.3 Limitations of Altro Whiterock 6

1.4 Installation tools + equipment 6

Chapter 1Introduction

5 Introduction

Notes1.1 Safety proceduresApart from the normal health and safety rules employed within the industry, the following rules should be noted:

• Safety information displayed on all materials must be strictly adhered to.

• Wear appropriate safety equipment (check with local, federal, and OSHA regulations).

• Safety eye wear must be worn when cutting materials, mixing adhesive, cleaning and preparation of site, and

where necessary to adhere to site regulations.

• Use face masks and all appropriate safety shoes, cut-proof gloves, clothing, and all other items that are required

by local, state and/or federal guidelines and regulations.

• Ensure good ventilation, provide forced air if required.

• Remove and dispose of waste as per all local, state and federal guidelines and requirements.

1.2 Altro Whiterock product overview Altro Whiterock is a semi-rigid, smooth, and very durable vinyl wall system. The material is thermoplastic and can be cut

and thermoformed into specific bends to suit the contours of the building.

Its semi-rigid properties allow Altro Whiterock to be installed over most sound substrates with minimal preparation and

disruption.

All joint, transition, and edge trims are high quality vinyl. Co-extrusions incorporating a neoprene gasket for the most

water resistive seal possible, can be considered watertight when installed vertically. When installed horizontally they

may catch water. When incorporated with heat welded, flash-coved Altro flooring, the system is ideal for such areas as

operating rooms, clean rooms, and laboratories.

Typical applications for Altro Whiterock

• Accents / cabinetry / mill-work / decorative

• Back Splashes

• Clean rooms

• Corridors

• Food production

• Hospitals

• Kitchens

• Laboratories

• Locker rooms

• Manufacturing

• Operating rooms

• Pools

• Showers

• Spa areas

• Sterilization areas

• Veterinary clinics

Altro Whiterock product specifications

Panel Sizes4'x8'2" ** 4'x9' 10.25" ** **Actual sizes may vary slightly

(1.22m x 2.5m) (1.22m x 3.0m)

Thickness 0.10" (2.5mm)

Weight24 lbs 29 lbs

10.4 kg 13 kg

Composition: Extruded semi-rigid PVCu* panel. * u means unplasticized

Introduction 6

Notes 1.3 Limitations of Altro WhiterockAltro Whiterock panels can be applied to most surfaces. They should however, not be installed near a heat source such

as, steam kettles, pizza ovens, cooking ranges, steam rooms, etc., or where exposed flame or severe heat could cause

distortion of the Altro Whiterock panel.

• Temperature Range: Altro Whiterock panels should not be exposed to temperatures above 140° F (60° C).

Altro Whiterock can become brittle at low temperatures and is not recommended for installations subject to

temperatures below 23° F (-5° C) where it is exposed to high impact. It is fine in chill rooms and refrigerated

storage but is not recommended for freezers.

• Before the testing of kitchen equipment, which is likely to expel severe heat, extraction systems must be

operational. Failure to do so may result in expansion problems.

1.4 Installation tools + equipment Installation Tools List

• Items with magenta bullets are required and available from Altro

• Items with gray bullets are required tools you must have for Altro Whiterock Installations

• Items with orange bullets are recommended for Altro Whiterock Installations

Hand Tools:

• Edge Scrapper (Skarsten Scraper)

• 3/16” Square Notch Trowel (MLN) for most applications

• 1/4” Square Notch Trowel (CTB)

• 1/8” Square Notch Trowel (PRB)

• Rubber Mallet, non-marking

• Wall Roller

• Anti-static Solution

• Caulking Gun

• 3’ (1 meter) & 6’ (2 meter) levels

• Small Block Plane

• Tape Measure

• Hole Cutters / Drill Bits

• Laser Level

• Ladders and/or Scaffolds

• Chalk Line

• Hammer

• File

• Mozart skiving knife

• 5’ and 10’ Straight Edges

• Versablade Trowel Handle

•4mm Narrow Flow Tip

• Trimming Knife Straight Handle Spatula

• Diamond Sharpening Pad

• Steel Clean Out Brush with Xacto Handle

• Metal Trim Plate

Electrical Tools:

• Hot Jet S Welder or Triac BT Weld Gun

• Altro Whiterock Thermoformer™

• Plunge saw with track guide and vacuum

• Jigsaw with fine toothed blades

• Drill (for mixing paddle and hole saw)

• MultiMaster cutter such as a Rockwell RK5139 K

oscillating tool kit

Recommended tools

Please refer to the separate

Construction tools catalog

for a complete list of the

tools and equipment offered

at Altro. Your instructor

will take time to review

the walls portion of the

Construction tools

catalog and explain the

30 day tool discount

offered for Training

Academy attendees. 1

Construction tools catalog Individual products and tool kits for floor and wall installation

Tech>tools>catalog>USA+CAN

updated 08/25/17

7 Pre-installation

Notes

Chapter 2Pre-installation

Topics

2.1 Preparation 8

2.2 Job-site conditions 9

2.3 Making your work table 9

Pre-installation 8

Notes 2.1 Preparation All surfaces must be smooth, sound, dry, and free of contamination. The wall should be cleaned prior to the installation

of Altro Whiterock. The working environment must also be dust free. Failure to comply with these conditions will reduce

the bond strength between the adhesive and substrate, and may cause the Altro Whiterock panels to de-bond.

Surface preparation

1. All substrates to be dry to 16% WME (wood moisture equivalent) on Protimeter ‘Survey master’ equipment.

2. All loose, flaking paint and dust to be removed.

3. Friable surfaces to be removed or made sound.

4. All surfaces to be free from grease. Ceramic tiles to be thoroughly cleaned and de-greased, rinsed and left to dry.

5. Loose tiles are to be removed and area is to be filled with appropriate patching compound.

6. Depressions in substrate surface should be filled with appropriate patching compound.

7. All electrical switches, power points etc., should be in a first-fix/installation ready state. All electrical equipment

should only be moved or altered by a qualified electrician.

8. All plumbing should have fixtures removed to a first-fix or installation ready state and “tails” left protruding from

the substrate. Altro Whiterock panels can then be drilled and slid over the pipe tails. All holes should be drilled 1/8”

(3mm) oversize to allow for expansion, then sealed with Altro sanitary sealant. Plumbing should always be done by

a qualified plumber.

9. Hot pipes and steam pipes should be insulated and a 1/4” (6mm) expansion gap should be created when installing

panels around these pipes, then sealed with Sanitary Sealant.

10. All pipes, fixing bolts, etc. extending through the Altro Whiterock panels should have a minimum 1/8” (3mm)

expansion gap and be sealed using Altro sanitary sealant.

11. Door frames and door casings must be in place prior to the installation of Altro Whiterock.

12. Prior to installation, it is advisable to complete any painting which comes in contact with Altro Whiterock, as the

sanitary sealant used at junctions is unpaintable.

13. Priming of dusty and overly absorbent surfaces may be necessary for very absorbent or dusty substrates. Use 1

coat of any readily available water based primer (Valspar, Benjamin\Moore, Glidden, or equal).

Wall and substrates

All surfaces must meet these requirements:

• First, check the room using a 6’ (2m) level to ensure all walls are flat and plumb, paying particular attention to the

corners, window reveals, and door entrances. These need to be inspected to ensure they are free of any debris or

irregularities, which could prevent the panels from laying flat to the substrate.

• Very absorbent / porous substrates (particularly plaster finishes and very dusty or unprimed sheet-rock) must have

one coat of primer (Valspar, Glidden, Benjamin\Moore, or equal.) applied to the surface a minimum of 12 hours

prior to the installation.

• Walls should be smooth and flush. High points must be removed and low points filled with filler intended for the

substrate and environmental conditions.

• Wall tiles must be fixed firmly to the wall. As long as the tile edges do not protrude you do not have to skim grout

joints unless heat-welding.

9 Pre-installation

• Surfaces must be permanently dry and free from all substances that

may contribute to adhesive bond failure.

• Remove loose paint and conduct an adhesive bond test with painted

surface.

• Exterior walls must be adequately damp-proofed and insulated.

• Drywall substrates should be paint ready and completely dust free.

• If the corners are deemed out of plumb or vary too much, the

General Contractor/End-user needs to be notified and asked to

make repairs. 3/16” is considered the maximum tolerance.

Storage and handling

• If storage temperature is below 68°F (20°C), Altro materials must

be moved to a warmer place and allowed to reach this temperature

before installation. The room temperature must not be below 68°F

(20°C) and the wall substrate temperature between 65°F (18°C) and

80°F (27°C).

• Altro Whiterock, Altro Puraguard, Adhesives, and Accessories

must be stored in enclosed dry conditions and not subjected to

freezing or excessive heat. Heat above 140F will distort and damage

the material, cold temperatures will make the material brittle and

temperatures below 23F should be avoided during the storage

process.

• When stacking pallets they should not be stacked more than 8

pallets high and stacked flat without bumps or rolls and in a square

and well aligned configuration, safety precautions should be taken to

secure pallets to prevent shifting or falling.

• Eye protection should be used and care taken during cutting, fitting,

and thermoforming procedures.

• If more than one pallet of material is used, use material in sequence.

• Panels and all other materials should be moved into the acclimated

worksite 72 hours prior to installation.

• Panels and all other materials must be checked for defects before

installation. Do not install materials with visible defects.

• Check carefully to see that panels match in shade. If a shade

match cannot be accomplished, do not install. Contact your Altro

distributor.

2.2 Job-site conditions Operating temperature

Altro Whiterock will withstand service temperature of up to 140°F (60°C).

If cleaning with hot water, temperature should be regulated to a maximum

of 140°F (60°C) and not to be localized for an extended period of time.

Environment

Altro Whiterock should be installed in an area with ambient temperatures

between 68°F (18°C) and 80°F (27°C). Areas to receive Altro Whiterock

must be weather-tight and conditioned to the approximate temperature

and humidity conditions of the finished room.

To ensure that expansion and contraction parameters are not exceeded,

Altro recommends that Altro Whiterock is installed at approximately

the same ambient service temperature at which the room area will be

when commissioned. Normal expansion is provided for in the fitting

of the material within the joint methods/strips and the silicone seals at

abutments.

Suitable surfaces

Check adhesive data for specific requirements

14. Good quality, brick or block-work with well aligned joints and all

irregularities repaired and made smooth. Must be straight to within

1/8” over 6 feet and bricks/blocks flush with those adjacent.

15. Minimum 1/2” thick sheet-rock/plasterboard.

16. 1/2” Durock or Hardibacker or most ceramic tile backer boards

17. Minimum 3/8” underlayment grade plywood.

18. Minimum 3/8” underlayment grade MDF panels.

19. Ceramic tiles are securely bonded to the substrate fully clean and

free of soap scum and all other containments that may inhibit

adhesive bond (two-part W39 adhesive must be used).

20. Most sound painted surfaces (an adhesive test is advisable to

determine suitability).

21. New sheet-rock, plaster, and pink finishing plasters are generally

dusty. Surfaces to be brushed and thoroughly sealed with paint

primer.

22. Metal substrates. If metal is susceptible to rusting, apply a coat of

rust inhibitor.

2.3 Making your work tableTo create your workbench needed you will need the following materials:

• One 4’x8’ piece of plywood (¾” thick) - 10’ if using a 10’ Altro

Whiterock panel

• 2” x 4” or 2” x 6” support beams - or appropriate length to support

table top

• Stands for Thermoformer using 2 sets of legs (saw horses)


Notes

Chapter 3Installation practices

Topics

3.1 General installation instructions 11

3.2 Thermoformer 12

3.3 Measuring for bends 13

11 Installation practices

Notes3.1 General installation instructionsNote: All terminating edges of Altro Whiterock that are not being heat welded are to be Chamfered/Beveled on both

front and back edges so as to remove any sharp edges and to allow the greatest surface area for the application of Altro

Sanitary sealant.

1. Apply a level datum line around the entire installation area. The datum line is used for the calculation of

measurements for ceiling/floor height, outlets, pipes, etc., and to ensure the panels are plumb as the installation

proceeds. It is advisable to set this datum line at 5’ (60” / 1.55 m) off the finished floor. This way the line is near eye

level and is easy to locate when placing the panels on the wall. The datum line height can be adjusted to suit the

installer.

When installing the Altro Whiterock panel as a wainscot the wainscot height will require a lower datum line location.

Datum lines can be quickly set up and established using a laser level and chalk line.

2. Place panel on the workbench and inspect for damage. Carefully mark your datum line on the protective film on the

face of the panel, using a pen, taking care not to press too hard, and possibly damaging the surface of the Altro

Whiterock panel. Your datum line on the panel should also consider if the panel is flush to the floor or the height of

the cove reveal.

3. On the wall: measure from the datum line down to where the panel is to end.

On the panel: starting from one of the finished ends of a panel, make a mark on the face of the panel with that

same measurement. Repeat this measurement on the other side of the panel and draw this datum line across

the panel face on the protective film, this is your datum line. You will use this to measure off all of your height

measurements. As you have used the bottom of the panel to arrive at your datum line, that bottom edge will not

require cutting.

3a. On the wall: Measure from the datum to the ceiling or any other point where you need to determine the

height of a cut. Always allow a minimum of 1/16” space between the panel and any abutment.

3b. Cut the panel using a jig saw, circular saw, track saw and track, multimaster or any other appropriate

method you choose.

4. Once cut for height and penetrations make any bends as needed using the Thermoformer (See section 3.2

Thermoformer on page 12). Caution it may be necessary to leave your ceiling cut 1”inch longer as this will allow

the direct scribe of the panel to the ceiling when the corners are out of square/plumb; the scribe is done to the

pane a 2” straight edge or by using dividers set to 2”; the panel seam edge at the leading edge of the panel may

now also require that it be re-plumed / re-leveled and cut to fit straight up and down and level. Peel back and

remove the protective film approximately 2” (50mm) from the edge.

5. Hold the panel up to the substrate, check for fit and panel edge plumb/level ensuring you have a minimum 1/16”

(2mm) expansion joint at all abutments and pipe work, and other protrusions.

6. When the panel has been made to suit the required finish detail, lay the panel face-down on the workbench and

clean the back of the panel with anti-static solution.

7. Apply the double sided tape per the detail instructions according to the selected jointing method.

Note: Always apply a coating of W165 tape adhesion promoter on the wall where the double sided tape will make

contact.

8. Dust and clean the wall surface, prepare the panel and spread the specified adhesive as below:

8a. After all bends and cuts are made, and the tape is in place, apply the adhesive to the back of the panel, using

the recommended trowel notch.

8b. If using W39 two-part polyurethane adhesive, carefully mix part B into the part A bucket together using a low-

speed mixing drill and paddle for a minimum of 3 minutes, until an even color of the adhesive is reached.


Notes 8c. The working time of adhesives is approximately 30 minutes depending on the ambient temperature of the

room. The trowel must be held so that the adhesive is applied to an even finish, and the trowel notches are

replicated to the same depth over the entire panel. Pull the trowel across the width of the panel so all notches run

left to right.

8d. At any points where there may be a gap between the wall and panel, apply additional adhesive. This is

especially true at inside and outside corners.

9. After adhesive has been applied, apply double sided tape as required by the jointing method used. Lift the panel to

the wall and adhere to the required location using the datum line previously applied to the wall. Apply pressure to

the whole panel face to ensure the adhesive has been transferred and will be fully bonded to the substrate. This is

normally done with a wall roller to prevent the surface from being damaged.

10. Failure to ensure a good transfer of adhesive to the substrate could result in the panel debonding.

11. The curing time of the adhesive is dependent on the absorption of substrate, type of adhesive and the ambient

temperature.

3.2 ThermoformerThe thermoformer allows installers to heat and shape Altro Whiterock wall panels to conform to the contours of a room.

This allows the Altro Whiterock wall system to remain seamless around inside and outside corners.

While using the thermoformer, work should be done on an appropriate sized worktable. The table top should be

flush with the height and sides of the thermoformer. This is so the panel can be laid across the heat source while

thermoforming and an even distribution of heat is obtained along the length of the bend line.

Alternatively you may set up a 4’ x 8’ workbench made of a panel of thick plywood on saw horses and set the

thermoformer adjacent on separate metal stands.

Heat element

Insulating stone

Top-down view of Thermoformer

Using the thermoformer

1. Assemble workbench and thermoformer.

2. Plug-in the thermoformer and let it warm up for approximately thirty minutes before beginning thermoforming.

3. Mark the panel at the edge where the bend is to occur, with these pre-established bend lines marked on the face

of the Altro Whiterock panel; center the bend lines over the heat element opening on the thermoformer, heating

from the backside when allowable. You may heat the face of the Altro Whiterock for certain bends being careful to

not touch the panel to the white insulating stone. Remove the tack film from the surface first.

4. Allow sufficient time for the Altro Whiterock panel to heat up until there is a visible softening of the material over the

line where the material is to be thermoformed (about 30 seconds).

5. Immediately move the material from the thermoformer onto the flat worktable.

6. Forming the heated panel can be done in one of two ways:

13 Installation practices

NotesSharper corner edges

This is accomplished by using just enough heat to bend and form the material, approximately 20 to 30 seconds on

the thermoformer, then the material is folded directly to the required corner angle and held to cool (do not bend the

panel all the way in half and then back to the desired angle), cooling takes about 1 minute—Use a ‘T’ style straight

edge to help form this and other bends.

Softer corner edges

This is accomplished by keeping the panel on the thermoformer for longer (30 seconds or more) period of time

and utilizing more heat, the longer (more) heat that is used the farther the heat radiates out from the bend area and

the softer and larger the radius angle (bend) will be when formed; the material can be bent all the way in half when

forming softer corners—hold the panel at the desired angle (bend) until the panel has cooled and becomes rigid.

Use the ‘T’ style straight edge to hold the panel bend in place while cooling.

7. Make any additional bends needed in the material following the same procedure.

8. When measuring for bends, always consider and allow for the thickness of the panel and the adhesive.

3.3 Measuring for bendsAltro recommends using thermoformed internal/external corner detail when installing Altro Whiterock. This is achieved

by heating the panel on the thermoformer and manually forming the panel to the desired angle.

• When possible, always mark on the face of the panels on the protective plastic film

• Always measure on the face of the panels

• Estimate the panel thickness and the adhesive to be approximately ” thick

• Always take three measurements, top, middle and bottom of the corner being wrapped/thermoformed

What size panel do I need?

See mock-up diagram below for an example with measurements.

Measuring with outside cornersUse the widest measurement, then add ” per corner to the total length

of the panel.

Measuring with inside cornersUse the narrowest measurement, then subtract ” per corner from the

total length of the panel.

Measuring with inside and outside

cornersUse the narrowest measurement, do not add or subtract anything.

Notes


Topics

4.1 Adhesives 15

4.2 Tapes 16

4.3 Sanitary sealant 16

Chapter 4Adhesives, tapes and sealants

Notes

15 Adhesives, tapes and sealants

4.1 AdhesivesAltro W157

Water-based acrylic adhesive is suitable for surfaces in dry, climate controlled areas and may only be used with

absorbent substrates.

Altro W39

Two-part polyurethane adhesive suitable for wet areas, and for all absorbent and non-absorbent surfaces. When in

doubt, use this adhesive.

Adhesive spread rate is approximately 1 gallon of adhesive per 8’ panel when using the 3/16” inch square notch trowel.

Bond test should be performed on all surfaces.

W165 tape adhesion promoter

Apply a coating of W165 on the wall where the double-sided tape will make contact

Substrate Altro W39 Altro W157

Drywall Minimum 1/2" thick A & B A, B, & E

Plywood Minimum 3/8" thick B & G B & G

Metal Required Choice Not Recommended

Ceramic Tiles C Not Recommended

Plaster B & G B & G

Concrete B B

Brickwork B & F B & F

Block-work B & F B & F

Painted D E

(A) All gypsum joint compound needs to be primed with PVA primer.

(B) Very absorbent surfaces must be primed with one coat of a PVA primer.

(C) Provided tiles are firmly bonded to the substrate and free from surface contamination, soap scum, grease etc.

(D) A bond test is advisable to check adhesive does not react with paint.

(E) W157 should not be used for bonding to moisture resistant substrates.

(F) Brickwork and block-work should be of good quality and joints should be flush.

(G) Test for moisture with a GE Protimeter, which should give a maximum reading of 16% WME (wood moisture equivalent).

Recommended trowels

Use only approved adhesives and trowel notches as recommended by Altro. Consult the adhesive label for additional

information. MLN 3/16th trowel notch is recommended for most applications. Other trowel notch sizes based on

substrate conditions. Contact Altro technical for further information.

PRB1/8

1/8 1/8

PRB

For very smooth substrates

CTB12.8

14

14

14

CTB

For very uneven substrates

MLN - 3/16th

Recommended trowel notch for

most applications

Notes


4.2 Tapes2” double sided tape is used for heat welded seam applications. 1” double sided tape is used for all other applications

(1 part and 2 part joint strip applications).

4.3 Sanitary sealantNote: All terminating edges of Altro Whiterock that are not

being heat welded are to be Chamfered/Beveled on both

front and back edges so as to remove any sharp edges

and to allow the greatest surface area for the application

of Altro Sanitary Sealant.

Description

Altro Whiterock sanitary sealant is a non-toxic, solvent-

free, low modulus, multipurpose, one component sealant.

Altro Whiterock sanitary sealant has a high resistance to

aging, low and high temperatures -58°F to 302°F (-50°C to

+150°C) and is FDA approved.

Altro Whiterock sanitary sealant has been tested and

complies with the relevant paragraphs of code CF21 of

the Food & Drug Association (FDA) approved for use

throughout the food industry and contains an anti-fungal

compound to prevent mold growth in areas of high

humidity.

Application

Altro Whiterock sanitary sealant has been especially

formulated for all types of sanitary applications and rooms

with high humidity such as bathrooms, kitchens, as well as

cold storage cells.

Altro Whiterock sanitary sealant has an adhesive strength

on most dry and clean surfaces.

Processing temperature

Between 40°F and 104°F (+5°C and +40°C).

Surfaces

All surfaces should be dry, clean and free from dust and

grease. Altro recommends all surfaces are primed prior to

application of Sanitary sealant.

Method of use

Use a standard cartridge gun. Maintain a consistent

thickness. Using an appropriate tool, smooth as needed.

Shelf life

Minimum of 12 months if kept in the original package and

stored in cool and dry conditions.

Colors

Altro Whiterock sanitary sealant is available in white as

well as colors that have been formulated to coordinate

with all Altro Whiterock™ and Altro Whiterock Chameleon

hues.

Repairing

Completely remove loose areas and reapply.

Limitations

Do not expose to thermal, mechanical or chemical

influences before complete vulcanization. Good ventilation

is important during application and vulcanization of the

product.

Safety

Please refer to Material Safety Data Sheet (MSDS) below.

UnvulcanizedType of sealant Polysiloxanes

Vulcanize system vulcanizing through air moisture

Skin forming time23oC / 50% R.H.

TRS: 14 minColor: 22 min

Vulcanization rate 23oC / 50% R.H.

1-2mm > 24 hours

Density ( ISO 1183) TRS: 1.02g/mlColor: 1.38 g/ml

VulcanizedShore A hardnessISO 868

TRS: 16Colors: 22

Elastic recoveryISO 7389

> 90%

Deformation capability 25%

Modulus at 100% elongation

TRS: 0.31 N/mm2

Colors: 0.36 N/mm2

Elongation at break ISO 8339

TRS: 320%Colors: 300%

Temperature resistance -50oC /+ 150oC

Notes

17 Jointing methods

Topics

5.1 Heat welding system 18

5.2 Joint strips 20


5.4 One-part joint strip 21

5.5 1” Double-sided tape with joint strips 23

Chapter 5Jointing methods

Notes

Jointing methods 18

5.1 Heat welding systemHeat weld is to be used when a fully hygienic, smooth, seamless installation is required.

Substrates

When installing Altro Whiterock panels with welded joints, it is imperative the substrate is in smooth condition. Surfaces

must be sound, clean, smooth, true, flat, and flush; in particular these conditions MUST be present where the welded

panel joints will be. Recommended substrates include drywall, plywood, finishing plaster and most types of sand &

cement. See section 2.1 Preparation on page 8 for additional substrate recommendations.

Planning layout

When planning the layout of the panels it is important to minimize the number of joints in the wall system. Ensure joints

do not fall too close to corners. We suggest joints should not be formed any closer than 12" from a corner. Consider if

the person doing the heat-welding is a right handed person or a left handed person, as a left hander can get closer to a

left hand corner than a right handed person can and vice versa with a right hander getting closer to a right hand corner

than a left handed person can.

Always apply a coating of W165 tape adhesion promoter on the wall where the tapes will make contact. Altro

recommends Altro W39 adhesive for heat welded installations.

Preparing the joint

Note: Before installing the panels, you must fit the double sided tape to the substrate at the center point where the two

panels will meet so the tape is 1" under each panel.

Panel preparation

Always inspect all panel/seam edges to check and ensure that all edges are straight, clean, smooth, true, and free from

burrs, or edge curl; de-burr, re-cut, or re-plumb/straiten panel seam edges as needed. It is recommended to use factory

edges when possible.

When cutting panels, you will obtain a truer edge if you use a track saw and guide, if using a jigsaw or other cutting

method cut the panels slightly larger than the size required and then use a carpenters hand plane to plane the edge to

size and to obtain a clean and 'crisp' square edge.

Check that there is no loose debris left on the edge of the panel from where it was cut. This debris could burn when heat

welding the joint and will leave a blemish which cannot be removed from the joint.

Heat weld installation and processes

Apply 2” wide double sided tape on the wall so it is centered at the seam (leave the protective paper on the double sided

tape). Once the panels have been prepared and the panel seam edge slightly chamfered/beveled to accept the heat-

weld bead (this chamfered/ beveled edge can be done with either a carpenters block plane and/or our edge scraper) and

the panel dry fitted to check everything is correct, apply the adhesive to the back of the panel, stopping 1” (25mm) short

of the seam edges. See Section 3.1 for details

After the panel is placed on the wall and fit to the datum line and panel seam/joint, carefully ease the edge of the panel

off the wall and remove the protective paper from the double sided tape and re-set panel (save the protective tape

cover). Roll the panel to achieve a transfer of the adhesive to the substrate. When rolling the panel, start in the middle

and work outward. Place the tape cover back on the exposed double sided tape to protect it. Note: Always apply a

coating of W165 tape adhesion promoter on the wall where the tapes will make contact.

Prepare the next panel in the same way as described above (ensure that the seams of the previously installed panel

are clean and free of adhesive). Before fitting this panel you must fit a series of “spacer pins” against the edge of the

previous panel. This is to provide the correct ‘gap spacing’ between each panel. A spacer pin may be a 3D finish nail

(on gypsum board and drywall) or a dime set on edge and being held in place by the double sided tape (on concrete or

cement block) that provides the correct amount of space between each panel. The correct space should be no more

than 1/16th” width.

Fit the next panel as described, ensuring the panel is butted tightly against the spacers. Once the panel has been rolled

almost to the edge, remove the spacer pins and then remove the final part of the double sided tape’s protective cover.

Notes

19 Jointing methods

Press the panel firmly onto the foam tape and then complete the rolling of the panel.

Check that all edges are clean and free of adhesive residue. Once the installation of the panels is complete, you are then

ready to weld the joints.

Heat welding

Clean both the seam area and the weld rod with the anti-static solution. Ensure that the heat welding equipment and in

particular the heat-welding tip is completely clean and free of any debris or carbon buildup.

The heat welding technique used to weld Altro

Whiterock panels is largely similar to that used

with Altro sheet flooring. The same type of tools

and welding equipment should be used.

To determine proper temperature and speed

for heat welding have been satisfied, test weld

on a scrap piece of Altro Whiterock before

proceeding. Do not scorch the panels as this

will be extremely difficult to repair.

Check for completeness of weld by trying to roll the bead left to right after it has been welded.


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Heat-welding system

2” Double

sided foam tape

W165 tape adhesion

promoter

Altro Whiterock

Gap 1/16th”

With a 3d

fi nish nail

AltroFix

adhesive

Substrate

Heat weld joint

Previously

installed panelButting edge

Leading edge


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Heat-welding system

2” Double

sided foam tape

W165 tape adhesion

promoter

Altro Whiterock

Gap 1/16th”

With a 3d

fi nish nail

AltroFix

adhesive

Substrate

Heat weld joint

Previously


Leading edge

Notes

Jointing methods 20

Trimming off excess weld rod

Allow the weld rod to cool down sufficiently before

trimming. Apply soapy water to panel along weld to help

lubricate the skiving tool. Once the rod has cooled down

you can commence final trimming with your trimming tool.

Take care not to scratch or damage the Altro Whiterock

surface while undertaking this final part of the operation.

The use of a trim plate is optional. Try to accomplish this

in one pass, as multiple passes tend to leave the weld

jagged and increase the risk of scratching the panel.

When heat welding, a small mock up must be done and

inspected for client approval before proceeding with the

entire installation.

5.2 Joint stripsThere are two types of joint strips – a one part strip and a

two part strip.

Joint strips are preferred for use in areas where there

are temperature changes such as kitchens, showers

(the transition of Altro Whiterock panel to floor detail

must always be an overlap of the Altro Whiterock wall

panel over the top of the floor when in wet areas such

as showers), and spa areas. The joint strip gives the

wall panel room to expand and contract due to the

temperature and humidity changes.

One-part joint strips should be used in areas with public

access or controlled areas where people could scratch or

peel off the strips. Two-part joint strips are recommended

for all other installations.

5.3 Two-part joint strip Note: This is the most cost effective and user friendly style of panel joining.

1. Once the panel is adhered to the wall, slide the back

part of the two-part joint strip under the installed

panel. Leave a small gap (about 1/16”/1mm) between

the panel edge and the center part of the channel of

the joint strip (there is a slightly indented line in the

strip to use as a guide). If a transition strip is to be

used to create a horizontal joint between the panel

and the finished flooring, the back part of the vertical

strip should be cut short to allow the horizontal

transition strip to be fitted at the base of the panel.

2. When forming the front cover around horizontal

internal and external corners, the back of the trim

should be carefully undercut to allow the trim to bend

around the angles in one piece.

3. After this procedure has been completed, install the

next Altro Whiterock panel in the sequence. Once all

panels are installed, finish by installing the front cover

section of the two-part joint strip.

4. The front joint strip covers should be initially

positioned by hand pressure. They can then be fully

set in place by tapping with a rubber mallet or a hand

roller.

Main features of Altro Whiterock A831, A832

and A833 joint/transition strips

• A narrower and flatter extrusion than the G-series

one part strip

• Tight finished joints

• User friendly

• Easy installation when used in conjunction with Altro

Safety Flooring

• Easy and quick to repair in the event of damage -

only replace the front cover

Fitting the Two-part joint strip - A831

• Apply first panel of Altro Whiterock to the wall. See

section 6.4 Two-part joint strip on page 28.

• Cut A831 to length as needed.

• Slip A831 backing strip behind edge of panel before

adhesive cures.


www.altro.com


Accessories: joint and transition strips

CODESA831/30 A831/25

Two-part joint strip

A832/25

Two-part cut tile transition strip

A833/30A833/25

Two-part start and edge trim

G831/30G831/25

One-part joint strip

G832/25

One-part cut tile transition strip

G833/30G833/25

One-part start and edge trim

A918/18/01A918/18

Shower trim

A831/30 (10 ft)

A831/25 (8 ft)


A832/25 (8 ft)

Two part cut tile transition strip

7/8" (21.2mm)

1" (23.9mm)

7/8" (21.2mm)

1 1/2" (40mm)

Two-part

One-part

A833/30 (10 ft)

A833/25 (8 ft)


1/2" (14.92mm)

1" (23.9mm)

2

G832/25G832/30Cut tiletransition strip

25

30

G833/25G8333/30Heavy duty startand edge trim

2616

7

2

G834/25Resintransitionstrip

50

16G831/25G831/30joint strip

A8332-part startand edge

A8312-part jointstrip

A832Cut tiletransitionstrip

50 30

*A833, A831, A832 are 6.05 in height when locked

*6.05

14.29

23.9

21.2

40

21.2

23.9

2


25

30


2616

7

2


50





50 30


*6.05

14.29

23.9

21.2

40

21.2

23.9

2


25

30


2616

7

2


50





50 30


*6.05

14.29

23.9

21.2

40

21.2

23.9

G831/30 (10 ft)

G831/25 (8 ft)


G832/25

One-part cut tile

transition strip

G833/30

G833/25

One-part start

and edge trim

12or 18

18 or 23

12or 18

18 or 23

A918/18/01

A918/18

Shower trim

2" (50mm)

1.2" (30mm)

1.2" (30mm)

1" (25mm)

1.02" (26mm)

.63" (16mm)

.08" (2mm)thick

.28" (7mm)thick

.7” (18mm)

.47" (12mm)

or

.9” (23mm)

.7” (18mm)

or

Notes

21 Jointing methods

• Ensure edge of panel is lined up with the marked line

on A831 backing strip.

• Apply second panel.

• Ensure edge of second panel is lined up with marked

line on A831 backing strip.

• Snap front cover of A831 to A831 backing strip.

• Use either a rubber mallet or roller to ensure full

contact between A831 front cover and panel.

Fitting the start and edge profile - A833

Half height, wainscot/dado and vertical stops

• Install panel per digram 6.6 on page 34. Slip A833

backing strip behind edge of panel before adhesive

cures.

• Ensure male barbed front cover of A833 is completely

housed in to the female A833 backing strip.

• Use either a rubber mallet or roller to ensure full

contact between A831 front cover and panel, caulk/

silicone the edge of the start/stop edge cover strip at

the junction of where the cover strip and wall meet.

If in doubt with any part of this installation please contact

the Altro technical services department.

5.4 One-part joint stripInstallation

The process of the one-part joint strip is similar to the

two-part joint strip except that during preparation, a small

bevel will need to be applied to the edges of the panel

where the joint strip is fit onto the panel. This will enable

the one-part joint strip to be fitted more easily to the panel.

The joint strip has a moisture resistant gasket seal on the

inner edges which could be damaged if forced onto the

panel.

1. Bevel the panel edges where the joint strips will

be used. Use an electric or hand file, a small block

plane, or a walls pull scraper to bevel the panel

edges.

2. Fit the joint strip onto the leading edge of the panel.

Tap the joint strip all the way onto the panel.

3. Apply 1” double sided tape and adhesive to the back

of the panel. Remove the protective film from the

double sided tape, and install the panel onto the wall.

Note: Always apply a coating of W165 tape adhesion

promoter on the wall where the tapes will make

contact.

4. Prepare the next panel ensuring that edges are

beveled, install a joint strip to the leading edge of

this panel (tap joint strip all the way into and seated

against the panel).

5. Apply tape and adhesive to this panel and remove

the protective film from the double sided tape.

6. Install the panel that has just been prepared. This

panel is set onto the wall so it overlaps the back leg

of the previous joint strip. Remember use the datum

lines to set the height.

7. Once the panel is rolled tightly to the wall, use a

tapping block or plastic stair tool (chisel) to adjust

the joint strip sideways so it overlaps the two panels

equally (make sure the joint strip is straight and level).

Start at the top and work your way down the strip.

Add lubrication such as soapy water to help adjust

the joint strip in place.

As a summary of the one-part joint strip installation; install

the panels in sequence from left-to-right and fit a joint strip

to the right side of each panel before you place it on the

wall. After two panels are fit to each other, the joint strip

is then tapped over and onto the panel being installed. A

tapping block or plastic stair tool (chisel) must be used to

adjust the joint strip sideways so it overlaps the attached

panels equally.

Notes

Jointing methods 22


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CODESG831/30G831/25


1. Lay the next panel (prepared

the same way) onto the

exposed back leg of the joint

strip.


G831

Bevel Edge

2. Tap the G831 toward the

second panel so the face

overlaps both panels equally.

AltroFix adhesive

AltroFix adhesive

Previously


Leading edge

One-part transition strip - types

Part 1While preparing the first panel, bevel the butting

edge. Attach the one part joint so that it is tight

against the panel edge. Adhere and place on wall.

Use three horizontal rows of 1” double sided tape.

Part 21. Lay the next panel (prepared the same way) onto

the exposed back leg of the joint strip.

2. Tap the G831 toward the second panel so the

face overlaps both panels equally.


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CODESA831/30 A831/25


A832/25


A833/30A833/25


G831/30G831/25


G832/25


G833/30G833/25


A918/18/01A918/18

Shower trim

A831/30 (10 ft)

A831/25 (8 ft)


A832/25 (8 ft)


7/8" (21.2mm)

1" (23.9mm)

7/8" (21.2mm)

1 1/2" (40mm)

Two-part

One-part

A833/30 (10 ft)

A833/25 (8 ft)


1/2" (14.92mm)

1" (23.9mm)

2


25

30


2616

7

2


50





50 30


*6.05

14.29

23.9

21.2

40

21.2

23.9

2


25

30


2616

7

2


50





50 30


*6.05

14.29

23.9

21.2

40

21.2

23.9

2


25

30


2616

7

2


50





50 30


*6.05

14.29

23.9

21.2

40

21.2

23.9

G831/30 (10 ft)

G831/25 (8 ft)


G832/25

One-part cut tile

transition strip

G833/30

G833/25

One-part start

and edge trim

12or 18

18 or 23

12or 18

18 or 23

A918/18/01

A918/18

Shower trim

2" (50mm)

1.2" (30mm)

1.2" (30mm)

1" (25mm)

1.02" (26mm)

.63" (16mm)

.08" (2mm)thick

.28" (7mm)thick

.7” (18mm)

.47" (12mm)

or

.9” (23mm)

.7” (18mm)

or

Notes

23 Jointing methods


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1” double-sided tape when using joint strips

Tape layout for use with joint transition trims at

fl oor to wall transition

Tape layout for overlap method

Back bevel

top of panel

Bevel front and

back of panel

Three rows

of clear Altro

sanitary

sealant

Position tape 2" from bottom

edge to allow for overlap of Altro

Whiterock onto fl ash-coved

fl ooring

Position tape 1" from bottom

edge to allow for transition strip

Datum

(level line)

Datum

(level line)

Back bevel top

of panels

AltroFix

adhesive

AltroFix

adhesive

Position tape 1/16”

down from top edge

Position tape 1/16”

down from top edge

1"Double

sided tape

1"Double

sided tape

Place middle

row of tape

just

below datum

line

Place middle

row of tape just

below datum line

5.5 1” Double-sided tape with joint strips

Notes

Floor - to - wall transitions 24

Chapter 6Floor-to-wall transitions

Topics

6.1 Floor to wall overlap transition 25

6.2 Floor to wall heat welded transition 26

6.3 Installation over epoxy 27


6.5 Connecting to flash cove with a two-part joint strip 28

6.6 One-part concealed transition trim 29

6.7 Fitting to quarry tile base 32

Notes

25 Floor - to - wall transitions

6.1 Floor to wall overlap transitionPreferred method

When using heat-weld panel seam finishing an overlap of the wall panel to floor detail is preferred. The overlap detail is

the preferred wall panel to floor detail transition, particularity for wet areas such as showers.

Altro Whiterock wall system overlapping self-coved Altro flooring, fixed with the appropriate AltroFix adhesive, sealed

with Altro sanitary sealant at the overlap junction. Clear sanitary sealant to bottom of panel.

An overlap transition from floor to wall is our preferred installation method and is utilized in most installations. It is

completed by installing the flooring 6” – 8” up the wall, dependent on cove size and installing the Altro Whiterock with a

2” overlap. The juncture is then finished with Altro Whiterock Sanitary Sealant.

This installation technique is easier to install versus a heat welded transition and offers enhanced security over water

ingress.

Installations that may require a heat welded transition could be; pharmaceuticals, clean rooms, ISO compliant

laboratories.


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www.altro.com


Floor to wall overlap transitionAn overlap transition from fl oor to wall is our preferred installation method and is utilized in most installations. It is completed by installing the fl ooring 6” – 8” up the wall, dependent on cove size and installing the Altro Whiterock with a 2” overlap. The juncture is then fi nished with Altro sanitary sealant.

This installation technique is easier to install versus a heat-welded transition and offers enhanced security over water ingress.

Altro sanitary sealant

2” Overlap

4”-6”

2”

Altro sheet flooring

Cove former

Altro Whiterock2.5mm

PREFERRED METHOD

Sanitary sealant

Chamfer/bevel edge

Note: All terminating edges of Altro Whiterock that are not




of Altro Sanitary sealant.

Notes



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www.altro.com


Floor to wall heat-welded transitionThe key to proper welding at this fl oor to wall panel

juncture is to have both the wall panel and the

fl ooring fl ush with each other. This includes having

a solid backing behind the panel and the fl oor –

accomplished by using Altro’s WSBU 200 vinyl

backer.

This advanced method is for use in extremely

hygienic environments and should not be attempted

without contacting Altro technical services.

Typical applications

• Pharmaceuticals

• Clean rooms

• ISO compliant laboratories

• Operating rooms• Hygienic critical areas

Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat. Ut wisi enim ad minim veniam, quis nostrud exerci tation ullamcorper suscipit lobortis nisl ut aliquip ex ea commodo consequat. Duis autem vel eum iriure dolor in hendrerit in vulputate velit esse molestie consequat, vel illum dolore eu feugiat nulla facilisis at vero eros et accumsan et iusto odio dignissim qui blandit praesent luptatum zzril delenit augue duis dolore te feugait nulla facilisi.

WSBU 200PVCuINFILL

Grooved & Heat Welded Joint

Altro sheet flooring

Altro Whiterock2.5mm

Cove former

Altr

ofix

adhe

sive

ADVANCED INSTALLERS ONLY

6.2 Floor to wall heat welded transitionAdvanced method - installers should consult technical services before attempting

The key to proper welding at this floor to wall panel juncture is to have both the wall panel and the flooring flush with

each other. This includes having a solid backing behind the panel and the floor – accomplished by using Altro’s WSBU

200 vinyl backer.

This advanced method is for use in extremely hygienic environments and should not be attempted without contacting

Altro technical services.

Typical applications

• Pharmaceuticals

• Clean rooms

• ISO compliant laboratories


6.3 Installation over epoxy


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Altro Whiterock with epoxy flooring

4”- 6”epoxy/resinous

flooring create self cove with epoxy

soundduoos dduuooos dnuosubstrateatssu etaartsbbuuu etabbs bAltro Whiterock

subflooob ooobuus fluusssubfloorubflooob ooflfl roooobbu roooflbb rb

Altro sanitary sealant at overlap of panel and epoxy

(color matched to panels or clear) Epoxy tapers to nothing up wall.(Will be covered by panel)






Sanitary sealant

Chamfer/bevel edge

Notes


6.5 Connecting to flash cove with a two-part joint stripAltro Whiterock hygienic wall system 2.5mm (.10”) thick is installed over most sound, dry substrates, with the

appropriate Altro™ adhesive. Altro flooring (2mm, 2.5mm, 3mm or 4mm) flash-coved over cove former.

6.4 Two-part joint stripTwo-Part floor to wall transition strip, the transition strip is fitted to connect a panel to the flooring. As described previously,

the vertical joint strips are cut shorter than the full panel length. To find the correct length of the vertical section required, use a

small piece of transition strip (as a template) and fit this to the bottom of the panel. Then measure the length of the vertical joint

strip required and fit.

Fitting the cut tile transition strip - A832

• Cut A832 backing strip to size and slip behind the back of the installed

panel.

• Cut and form A832 front cover strip allowing for internal and external

radius bends.

• Snap A832 front cover into position ensuring male barbed front cover is

completely housed into the female A832 backing strip.

• Use either a rubber mallet or roller to ensure full contact between A832

front cover and floor covering.


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Connecting to a flash cove with a two-part cut tile transition stripAltro Whiterock hygienic wall system 2.5mm (.10”) thick is installed over most sound, dry substrates, with the appropriate adhesive.

Altro fl ooring (2mm, 2.5mm, 3mm or 4mm) fl ash-coved over cove former.

CODESA832/25 (8ft)


AltroFix

adhesive Substrate

W165 Tape

Adhesion promoter

and A815 double

sided tape

Two-part cut tile

transition strip

A832/25

Min. 4”

(100mm)

self cove

Cove

former

Altro Whiterock

Clear Altro sanitary sealant

Altro safety fl ooring


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CODESA831/30 A831/25


A832/25


A833/30A833/25


G831/30G831/25


G832/25


G833/30G833/25


A918/18/01A918/18

Shower trim

A831/30 (10 ft)

A831/25 (8 ft)


A832/25 (8 ft)


7/8" (21.2mm)

1" (23.9mm)

7/8" (21.2mm)

1 1/2" (40mm)

Two-part

One-part

A833/30 (10 ft)

A833/25 (8 ft)


1/2" (14.92mm)

1" (23.9mm)

2


25

30


2616

7

2


50





50 30


*6.05

14.29

23.9

21.2

40

21.2

23.9

2


25

30


2616

7

2


50





50 30


*6.05

14.29

23.9

21.2

40

21.2

23.9

2


25

30


2616

7

2


50





50 30


*6.05

14.29

23.9

21.2

40

21.2

23.9

G831/30 (10 ft)

G831/25 (8 ft)


G832/25

One-part cut tile

transition strip

G833/30

G833/25

One-part start

and edge trim

12or 18

18 or 23

12or 18

18 or 23

A918/18/01

A918/18

Shower trim

2" (50mm)

1.2" (30mm)

1.2" (30mm)

1" (25mm)

1.02" (26mm)

.63" (16mm)

.08" (2mm)thick

.28" (7mm)thick

.7” (18mm)

.47" (12mm)

or

.9” (23mm)

.7” (18mm)

or

Notes


6.6 One-part concealed transition trimThere are two methods of installing, one is to install the G835 trim to the back of the Altro Whiterock panels, and the

other method is to install the trim to the substrate, Altro prefers the application of the G835 to the wall substrate.

The G835 can be adhered by use of a little Altro Whiterock wall panel adhesive, W165 tape adhesion promoter, silicone

or mechanically fixing.

If installing the trim around the wall/substrate put a datum on the wall for the panel as per normal and then measure

down and install another line which will be the bottom (or could also be the top) of the G835 trim. Install the bottom line

so when the panel has been installed the bottom of the panel overlaps the bottom of the trim by around an inch.


www.altro.com


One-part concealed transition strip

CODESG835 / 25

One-part concealed transition strip

A803

Altro sanitary sealant

G832 / 25


Double sided tape ref

A815

Clear Altro sanitary sealant

A803

38mm radius

38mm cove former

G835/25 One-part

concealed wall / fl oor

transition strip mechanically

fi xed or bonded to the wall

with AP600 adhesive

Altro Whiterock bonded to wall

and G832 / 25 One-part cut tile

transition strip with AP600

Standard 20mm overlap 50mm

overlap in showers

100mm visual skirting

G835 transition strip

Altro sheet vinyl

AltroFix Adhesive

W139 or W137

Altro Whiterock

Notes


2. This photograph is shown applying a spread of

adhesive to the substrate, by hooking the notch of the

trowel against the small up-stand the trowel runs along

as if on a guide and the adhesive gives an even spread.

If not done, the adhesive spread to the back of the panel

may not bridge the gap produced by the trim.

3. The preferred reason for applying the G835 to the

wall/substrate is the trim continues without breaks. If the

trim is applied to the back of the panel, the trim must

overhang the width of the panel by at least 3/8 of an

inch. If used in conjunction with the two part trim, the

overhang provides support for the back-plate of the two

part trim, failure to do this and the back-plate sinks to

far from the panel and the front face of the trim becomes

difficult to engage to provide a watertight detail.

4. This shows the trim having been installed onto the

panel back and overlapping the panel edge.

1. This picture shows how the trim looks if installed on

the wall. The holes in the trim are there so the adhesive

bonds the trim to the substrate, and creates a sandwich

approach with the trim in the middle.

Concealed transition trim G835 installation steps

There are two methods of installing, one is to install the G835 trim to the back of the Altro Whiterock panels, and the

other method is to install the trim to the substrate, Altro prefers the application of the G835 to the wall substrate.

The photos on the next few pages should provide some clarification. The reason for the G835 concealed transition trim

is to allow the Altro Whiterock to be installed firstly and to provide a clearance gap to the back of the panel where the

vinyl can be inserted, this then allows the wall panels to be installed firstly and the floor tucked up behind the panel

secondly.

Notes


5. This shows the two part backer strip installed and

supported, and the vinyl installed.

6. This shows this detail as seen from the back of the

panel.

8. This photograph shows the trim applied to the panel

and shows the depth of the adhesive near the trim being

deeper.

7. If installing to the back of the panel, the trim must be

kept ½ short of the corners, and make an allowance of

around 1/8 inch as the trim will push the bottom of the

panel out in some instances.

The G835 trim can also be used with the heat-weld joint method as well as flexijoint, and aside from the main purpose

of the G835 allowing the wall panels to be installed before the flooring is installed and still allowing for the flooring to be

installed tucked up and behind the wall panels is that the wall panels have a twenty year warranty and more often than

not the flooring wears out before the wall panels are replaced.

This G835 concealed transition strip will aid in and allow for the easier re-installation of flooring with less likelihood of

damaging the wall panels if the traditional overlap joint (shower rooms) has been used and the wall panels have been

bonded to the flooring. We have also found that many architects and general contractors prefer the walling contractors in

first, as they do not want the flooring damaged when machinery is installed.

Notes


6.7 Fitting to quarry tile base


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Fitting to a quarry tile base

AltroFix

adhesive

Substrate

Back

Bevel Panel

Quarry Tile Skirting

(typical 4” (100mm)

by 3/8” (12mm) thick)

Altro Whiterock

Quarry tile fl oor

Joint sealed with Altro sanitary sealant






Sanitary sealant

Chamfer/bevel edge

Notes

33 Additional details and maintenance

Chapter 7Additional details and maintenance

Topics

7.1 Wainscot installation 34

7.2 Door, window and pipe installation 34

7.3 Installation over ceramic tile 35

7.4 Terminating Altro Whiterock at true ceiling wall intersection 35

7.5 Terminating Altro Whiterock at drop ceiling grid 36

7.6 Terminating Altro Whiterock above a drop ceiling grid 36

7.7 Adhering directly to the ceiling using heat welding method 37

7.8 Adhering directly to the ceiling using two part joint strip method 38

7.9 Altro Whiterock maintenance 39

Notes


7.1 Wainscot installationThere are a number of ways to mount Altro Whiterock in a

half height/wainscot/dado installation.

First, determine the style of finish you require for the

top edge of the panels. This may be a beveled panel

edge detail filled at the panel to wall abutment with Altro

sanitary sealant, or it may be accomplished using a start

and stop edge trim.

A) Installing the panels flush with the substrate

without the use of edging

Bevel the panels top edge with a router, edge scraper or

block plane so there is a 45 degree angle back towards

the wall. After installation, apply painter’s tape to the wall

about 1/16” above the top of the panel. This will make

sealant application uniform and easier to clean up. Apply

a bead of sealant at the top and smooth. Remove tape

immediately after. Alternatively, the panels exposed edge

can be slightly chamfered/beveled on both its outside

and inside and then sealed with Altro sanitary sealant, this

makes the least obtrusive edge finish.

B) Use of the Altro Whiterock start & edge trim

The part number is A833/25/xx, where 25 stands for 8 ft

lengths (only) and xx is where the color selection goes.

This installs similar to our A831 two-part connector strips;

install the panel and then slide the backer behind the

panel.

For heat welded panel joints

Apply 2” double sided tape using one row on the wall at

the seam area. You also need to place an additional row

of tape vertically near the midpoint of the panel. Stop the

tape 1” below the top of the panel to allow the backer

to slide in back. Always use our W165 tape adhesion

promoter (A816) at the locations where the tape will

contact the wall. Apply the chosen adhesive within 1/8” of

the top and bottom of the panel and 1” in from the edges.

If you are using the overlap method at the bottom of the

panel, hold the adhesive back the distance that the panel

will overlap the flooring/base material, then use our A803

Translucent Sealant at that overlap area.

For two-part joint connectors

Apply TWO adjacent rows of 1” double sided tape (A815)

horizontally about 12” down from the top, stopping 1” in

from the seam edge. However, if you are using the overlap

method, use ONE row horizontally down about 12” from

the top, then apply the other so it contacts the wall just

above the flooring/base material. Always use our W165

tape adhesion promoter (A816) at the locations where the

tape will contact the wall. Apply the selected adhesive per

a normal two-part installation.

7.2 Door, window and pipe installationAltro Whiterock hygienic wall system sealed to door frame.


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Door frame, window frame and pipe detail Altro Whiterock hygienic wall system sealed to door frame.

Substrate

DoorDoor Lining

Door/Window Casing

(complete with fi nish

coat prior to installation

of Altro Whiterock)

1/16” (2mm)

Altro sanitary sealant to

match panel color

Altro Whiterock

Back Bevel

Panel Edge

AltroFix

adhesive

Sanitary sealant

Chamfer/bevel edgeNote: All terminating edges

of Altro Whiterock that are

not being heat welded are

to be Chamfered/Beveled

on both front and back

edges so as to remove any

sharp edges and to allow

the greatest surface area

for the application of Altro

Sanitary sealant.

Notes



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true ceilingtermination

drop ceiling level

bevel on back of top panel

Altro Whiterock

Altroadhesive

drop ceiling griddrop ceiling panels & grid

drywall

soundsubstrate

Altro sanitary sealant(color matched to panels or clear)

drywall

Terminating Altro Whiterock™ at drop ceiling gridAltro Whiterock installed over drywall using AltroFix W39 adhesive, terminating at drop ceiling grid and sealed with

Altro sanitary sealant at top of panel.


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Installation over ceramic tile Altro Whiterock hygienic wall system installed over sound, well-adhered, ceramic wall tiles (with plywood infi lls, if needed) using Altro W39 adhesive

and sealed with Altro sanitary sealant.

Altro sanitary sealant to

match panel colorCeiling

Substrate

2” double sided

foam tape

Plywood infi ll

if needed

Altro W39

adhesive

Sound, well-fi xed,

ceramic wall tiles

Altro Whiterock

7.3 Installation over ceramic tileAltro Whiterock hygienic wall system

installed over sound, well-adhered,

ceramic wall tiles (with plywood infills, if

needed) using Altro W39 adhesives and

sealed with Altro sanitary sealant.

Note: All terminating edges of Altro

Whiterock that are not being heat welded

are to be Chamfered/Beveled on both front

and back edges so as to remove any sharp

edges and to allow the greatest surface

area for the application of Altro Sanitary

sealant.

7.4 Terminating Altro Whiterock at true ceiling wall intersectionAltro Whiterock installed over drywall using Altro W39 adhesive, terminating at true ceiling and sealed with Altro

Whiterock sanitary sealant at top of panel.

Sanitary sealant

Chamfer/bevel edge

Notes


7.5 Terminating Altro Whiterock at drop ceiling gridAltro Whiterock installed over drywall using Altro W39 adhesive, terminating at drop ceiling grid and sealed with

Altro Whiterock sanitary sealant at top of panel.

7.6 Terminating Altro Whiterock above a drop ceiling gridAltro Whiterock installed over drywall using Altro W39 adhesive and continuing through drop ceiling grid level.

When this installation occurs the ceiling grid must be installed to allow for expansion and contraction. of the wall panel.

This can be achieved by first making a pilot hole slightly larger that the fastener through the panel and then fastening the

ceiling grid to the substrate.


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Altro Whiterock

Altroadhesive

drywall

soundsubstrate

drop ceiling grid



drop ceiling level

drop ceiling panels & grid

Terminating Altro Whiterock™ abovea drop ceiling grid

Altro Whiterock installed over drywall using

AltroFix W39 adhesive and continuing

through drop ceiling grid level.

When this installation occurs the ceiling grid must be installed to allow for expansion and contraction of the wall panel.

This can be achieved by fi rst making a pilot hole slightly larger that the fastener through the panel and then fastening the ceiling grid to the substrate.


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drop ceiling level

bevel on back of top panel

Altro Whiterock

Altroadhesive

drop ceiling griddrop ceiling panels & grid

drywall

soundsubstrate


drywall

Terminating Altro Whiterock™ at drop ceiling gridAltro Whiterock installed over drywall using AltroFix W39 adhesive, terminating at drop ceiling grid and sealed with

Altro sanitary sealant at top of panel.

Sanitary sealant

Chamfer/bevel edge

Note: All terminating edges of Altro

Whiterock that are not being heat

welded are to be Chamfered/Beveled

on both front and back edges so as to

remove any sharp edges and to allow the

greatest surface area for the application


Notes


7.7 Adhering directly to the ceiling using heat welding methodAltro Whiterock installed on smooth ceiling substrates with Altro W39 two-part polyurethane adhesive and 2” double

faced tape. Cover back of panel with a placement as shown in diagram. Fill in the empty space with appropriate Altro

W39 two-part polyurethane adhesive. You may need to support the panels until the adhesive sets. Apply W165 tape

adhesive to ceiling to match tape pattern of panel.

Follow appropriate instructions for heat-weld method. See section 5.1 Heat welding system on page 18.


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Adhering directly to the ceiling using heat welding method

2” double faced tape

down center of panel

2” double faced tape around

perimeter of panel. Allow width

of tape to overhang 1” so the

adjacent panels can also adhere

to this piece of tape.

Altro W39 two-part

polyurethane adhesive on

panel. Keep perimeter clear

for the 2” double faced

tape that is on the ceiling

substrate.

Altro Whiterock panel edge

Ceiling substrateAltro Whiterock panel

Place 2” double faced

tape on ceiling substrate

to mimic perimeter of

Altro Whiterock panel.

Panel layout is optional.

Altro Whiterock installed on smooth ceiling substrates with Altro W39 two-part polyurethane adhesive and 2” double faced tape.

1. Cover back of panel with a placement as shown in diagram.

2. Fill in the empty space with appropriate Altro W39 two-part polyurethane adhesive. You may need to support the panels until the adhesive sets.

3. Apply Altro W165 tape adhesion promoter to ceiling to match tape pattern of panel.

4. Follow appropriate instructions for heat-weld method.

2” double-faced tape.

Altro W39 adhesive

Notes


7.8 Adhering directly to the ceiling using two part joint strip methodAltro Whiterock installed on smooth ceiling substrates with Altro W39 two-part polyurethane adhesive and 2” double faced tape.

Cover back of panel with a placement as shown in diagram. Fill in the empty space with appropriate Altro W39 two-part

polyurethane adhesive. You may need to support the panels until the adhesive sets. Apply W165 tape adhesive to ceiling

to match tape pattern of panel.

Follow appropriate instructions for two-part joint strip installation. See section 5.3 Two-part joint strip on page 20.


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Adhering directly to the ceiling using two part joint strip method Altro Whiterock installed on smooth ceiling substrates with Altro W39 two-part polyurethane adhesive and 2” double faced tape. Cover back of panel with a placement as shown in diagram. Fill in the empty space with appropriate

Altro W39 two-part polyurethane adhesive. You may need to support the panels until the adhesive

sets. Apply Altro W165 tape adhesion promoter to ceiling to match tape pattern of panel.

Follow appropriate instructions for two-part joint strip installation.

2" double faced tape shown in gray

All voids within the tape grid

fi lled with Altro W39 two-part

polyurethane adhesive

Notes


7.9 Altro Whiterock maintenanceInitial cleaning

Once all panels and joints are installed, remove the protective film and clean all surfaces down with an antistatic solution,

or anti-static wipes. This is required as the panel may have static build up, and any dust in the atmosphere will adhere to

the surface of the panel. Continue with regular maintenance as described below.

Regular maintenance

• Altro Whiterock can be cleaned with a diluted soap/detergent solution, such as PVC wall cleaner (for stubborn

stains) or AltroClean 44 (degreaser).

• Use a lint-free, non-woven wipe or a polyester knit wipe. Both are extremely low in particle generation.

• When cleaning Altro Whiterock, we recommend the temperature of water does not exceed 140˚F (60˚C).

• Pressure cleaning with hot water may be used with the pressure nozzle, a minimum of 2 feet (600mm) away from

the surface.

• To reduce the build-up of static, cleaning the panels with an anti-static solution or anti-static wipes is

recommended.

• Some cleaning agents may adversely affect Altro Whiterock. See Altro’s chemical resistance chart for reactions to

common chemicals at www.altro.com/techdocs.

Maintenance products available to purchase

P/N: ALW A859/325

Altro Whiterock PVC Cleaner

P/N: ASF 44 Cleaner

Altro Clean 44 - 5 Liters

1.3 Gallons

P/N: ALW A809/05

Anti-Static Solution

5 Liters

P/N: ALW A809

Anti-Static Solution in spray bottle

500ml

Notes


Altro Whiterock Installation guide

Introduction to Altro Whiterock™


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altro whiterock installation guide

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