silblock water repellents mb indd.pdf

7/25/2019 Silblock Water Repellents MB indd.pdf

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Silblock* Masonry Water Repellents

Product Description

Silblock masonry water repellents are

high performance water or solvent-basedsilicone sealing-impregnating agents thathave displayed outstanding reduction incapillary water absorption and organicstain repellency. Our intermediates serveas a building block for high performancemasonry water repellents.

Silblock masonry water repellents can offe

a wide range of performance propertiesfor potential use on concrete and masonrysurfaces. In addition to excellent freezethaw performance, Silblock masonry waterepellents typically exhibit resistance tochloride ion intrusion and moisture vaportransmission.

Momentive Performance Materialsprovides versatile materials as the startingpoint for our creative approach to ideasthat help enable new developments acrosshundreds of industrial and consumerapplications. We are helping customers

solve product, process, and performanceproblems; our silanes, fluids, elastomers,sealants, resins, adhesives, urethaneadditives, and other specialty productsare delivering innovation in everythingfrom car engines to biomedical devices.

From helping to develop safer tires andkeeping electronics cooler, to improvingthe feel of lipstick and ensuring thereliability of adhesives, our technologiesand enabling solutions are at the frontlineof innovation.

Product Key Features Typical Benefits

All Silblock Products Reduced Water Absorption Minimize spalling, efflorescence and improve

Test Method: ASTM D-6489 freeze thaw

All Silblock Products High Vapor Permeability Allows the surface to breathe

All Silblock Products Method of Application Application freedom

Spray, Paint, Dip, Addmix

All Silblock Products Available in water-based and solvent reducible Formulation freedom

All Silblock Products Available for silica and calcium carbonate-based

substrates

Silblock WA NCHRP Series II and IV tested Independent data supporting performance

Silblock SO & WSR Unique combination of water and stain resistance Resistance to aqueous-oil-and-acidic-based

stains

Silblock LD & CoatOSil* 2059 Low VOC Content Broader utility

Test Method: US EPA Method 24

Independent testing data available upon request.


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P. 02 Momentive Performance Materials

Product Description (continued)

We will focus on the following products and applications:

1) General purpose masonry water repellents Silblock LO-N

masonry water repellent and Silblock WA masonry waterrepellent.

2) Silblock WSR masonry water repellent that combines oleophobic

and hydrophobic behavior, typically resulting in an outstanding

reduction of capillary water absorption and an increased stain

resistance. It is a water-based stain and water repellent resin

solution.

3) CoatOSil* 2059 masonry water repellent that can impart water

and stain resistance onto calcium carbonate based substrates.

4) Paint additives that can add durability to exterior latex and

acrylic based paints.

General Purpose Masonry Water Repellents

Silblock LO-N masonry water repellent is approximately 100%

alkylated alkoxy siloxane which may be considered for use in water

repellent treatments of highly alkaline building materials such as

concrete, mortars, porous ceramic bodies (examples of which are

ceramic roofing tiles and facing bricks), calcium silicate bricks and

natural stones. It must be diluted before use in anhydrous solvents

such as aliphatic or aromatic hydrocarbons (examples of which are

toluene, xylene and mineral spirits).

Silblock WA masonry water repellent is a 60% active silane/siloxane

emulsion. It can offer excellent water absorption reductions and

chloride penetration reductions (NCHRP244 Series II and IV). It may

be considered for use in water repellent treatments of concrete,

plasters/mortars, porous ceramic bodies, lime sand stones, natural

stones and cement fiberboards.

15

10

5

0

24HourW

eightGain(%)

Water Absorption

Substrate

Ceramic Calcium Cement CementBrick Silicate Brick Plaster Mortar

Water-Based Silblock masonry water repellents

Solvent-Based Silblock masonry water repellents

Uncoated

Silblock WSR Masonry Water Repellent

A New Intermediate for Masonry Water Repellents:Single-Product Innovation for Protecting Construction

Materials

Silblock WSR masonry water repellent is an innovative

silicone-based emulsion that can combine water resistance and

oil resistance properties in a single additive to be considered for

formulated coatings used to treat masonry construction materials.

By typically offering good penetration on highly alkaline building

materials, Silblock WSR masonry water repellent can deliver

advanced water and oil protection in numerous potential

applications, including concrete, building restorations, bridge

decking, patios and sidewalks, roofing tiles and interior counter

tops. The material can help to reduce efflorescence and to improvefreeze thaw resistance.

Silblock WSR masonry water repellent is a waterborne material

that complements our solvent-based Silblock SO masonry water

repellent. This combined offering gives flexibility of choice for a

formulation that best addresses product requirements from both

a performance and environmental aspect.

With Silblock WSR masonry water repellent, we have combined

oleophobic and hydrophobic behaviors in a single product,

resulting in typically outstanding stain resistance and reduction of

capillary water absorption.

Note: Test data. Actual results may vary.

Figure 1 demonstrates that Silblock WA masonry water repellent

can provide performance similar to conventional solvent-base

systems.

Figure 1:The solvent based sealer (Silblock LO-N masonry waterrepellent) and the water-based sealer (Silblock WA masonry water

repellent) were both diluted to 5.5% actives and applied by brush

to different substrates. After seven days drying, the coated side was

exposed to water and the water intake was measured by weight.

The result is expressed as a percentage of the untreated uptake.


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Silblock WSR Masonry Water Repellent (continued)

Silblock WSR masonry water repellent may effectively penetrate

a number of building materials, including fresh concrete, plaster,

calcium silicate brick, fibrous cement and expanded concrete, to

deliver water and stain resistance. In addition, it typically allowsexcellent water vapor permeability, so surfaces can breathe.

The performance of fluoropolymers as stain resistant materials

is well known. However, they do not offer long-term water

repellency. Alternatively, silicones are effective and widely

used water repellents that can also provide vapor permeability.

However, until now, due to lack of oleophobicity, silicones have

exhibited limited stain resistance properties.

The water absorption and stain performance of new Silblock WSR

masonry water repellent on concrete was compared to stan-

dard products and to untreated substrates. For testing, the five

products were diluted to 5% actives by weight. The prepared

emulsions were applied by brush to the substrate at 150 g/m2

.After application, the panels were dried for seven days at room

temperature. For the water absorption measurements, the coated

sides of the specimens were exposed to tap water, and the water

absorption was calculated as water uptake in %. The results are

shown in Figure 2. Silblock WSR masonry water repellent ex-

hibited low water absorption while the fluoropolymers exhibited

significantly higher water absorption.

Figure 2: Water Absorption of Various Fluoropolymers

For the stain resistance test, drops of the following staining

agents were applied to the coated substrates described above:

Old machine oil

Machine oil Olive Oil

Mustard

Ketchup

The staining agents were left on the specimens for five hours and

then washed off with tap water. The results are shown in Figure 3.

Silblock WSR masonry water repellent was comparable with the

silicone emulsion in terms of reduced water absorption and with

the fluoropolymer in its stain resistance.

Figure 3: Silblock WSR Masonry Water Repellent

on Concrete and Terracotta

1400

1200

1000

800600

400

200

0

WaterAbsorption(percent on

concrete)

2 hours 6 hours 24 hours

Untreated 1147 1250 1265

Silblock WSRmasonry waterrepellent 59 88 147

Fluoropolymer 118 265 574

Silblock WAmasonry waterrepellent 29 59 103

Fluorosilane 44 59 118

Organic Anti-Stain 338 691 1250

Time



Immediately After

Application of Stains

After 5 hr., Washed Off

with Tap Water

Concrete

Untreated withSilblock WSR

water repellent


water repellent

Immediately After

Application of Stains

After 5 hr., Washed Off

with Tap Water

Terracotta


water repellent


water repellent


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CoatoSil* 2059 Masonry Water Repellent

Non-Fluorine-Based Stain Resistant Penetrant

The industry is making a strong effort to find alternatives to

fluorocarbons for water repellency and stain resistance protectionfor substrates. Silicone-based sealers are of considerable interest

for the improvement of capillary water absorption and minimiza-

tion of oleophobicity for reactive masonry surfaces like concrete

and marble.

CoatOSil 2059 masonry water repellent is the first generation

surface protectant for possible use with concrete and calcium

carbonate based masonry. This non-fluorine-based masonry water

repellent is inherently oloephobic and hyrdrophobic, due to its

superior film forming capabilities. CoatOSil 2059 masonry water

repellent can offer combined reduction in capillary water absorp-

tion and organic stain repellency for calcium carbonate masonry

such as quartz, tumbled marble, honed marble, limestone, certain

pavers and terracotta. It is a solvent-less water-based emulsionof an aminofunctional siloxane. CoatOSil 2059 masonry water

repellent has exhibited performance profiles superior to original

silicone-type water repellents. Potential applications for this water

repellent may include: office buildings, schools, parking garages,

bridges, retaining walls, remedial applications as well as new

construction.

Silblock Additives for Masonry Paint Systems

Paint systems are used primarily in the refurbishment and

restoration of buildings. While a mineral-based paint may onlybe applied on an untreated substrate, silicone masonry paints

may be applied easily on walls that have already been coated.

The key characteristics of a properly formulated silicone masonry

paint are the low water permeability (typical of emulsion paints),

or high water vapor permeability (typical of mineral-based paints)

and good weather stability.

Silblock F masonry paint additive and Silblock 3657 masonry

paint additive are solvent-less silicone emulsions to be considered

for use in silicone masonry paints. Silblock F masonry paint

additive can be considered for use with straight acrylics, where

a high transition glass temperature is needed Silblock 3657

masonry paint additive can be considered for use with styreneacrylics, where a lower glass transition temperature is needed.

If a primer is required, either aqueous Silblock LD masonry water

repellent or aqueous Silblock WA masonry water repellent may

be considered.

Figure 4-6: Building Refurbished with Paint Additive: Silblock F Masonry Paint Additive

Figure 4: 1993 After Refurbishment Figure 5: 12 Years after Treatment Figure 6: 12 Years after Treatment

Note: Sample results. Actual results may vary.


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Silblock Masonry Water Repellents

Potential Application Areas

Five application areas for which to consider Silblock masonry water repellents are:

1.Building Restoration:The treatment of porous mineral building materials.

2. Construction:Building / bridging deck rehabilitation and restoration for vertical and horizontal applications

3. Patio and Sidewalks:Materials maintain better appearance if treated for protection caused by exposure to water.

4. Kitchen Counter Tops:Preventative impregnation during building construction is generally more advantageous. Water Repellents

formulated using the new Silblock product line may help accomplish successful rehabilitation and durable restoration

5.Roofing Tiles

Application 1: Building Restoration

Problem Solved:Water repellency for vertical surfaces

Application 2: Bridging Deck

Problem Solved:Reduced chloride ion and alkalinity build up

Application 3: Patios and Sidewalks

Problem Solved:Water repellency for horizontal surfaces

Application 4: Counter Tops

Problem Solved:Water and stain repellency for horizontal surfaces

This photograph illustrates the difference betweentwo ceramic roof tiles, one coated with Silblock LDmasonry water repellent, the other untreated. Thetop tile was not treated, while the bottom tile wasimmersed in a 3% solution of Silblock LD masonrywater repellent for 30 seconds. Both tiles were thenplaced in a stand at a 35 angle and exposed toweather for 10 months.

Application 5: Roofing Tiles

Problem Solved:Water and UV resistance



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Silblock Masonry Water Repellents (continued)

Potential Application Areas (continued)

Key Features

Silblock masonry water repellents can help provide a dry environment discouraging

the staining that can occur on a wet environment.

Silblock masonry water repellents may help to surpress the growth of efflorescence.

Silblock masonry water repellents can improve freeze thaw resistance.



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Typical Performance of Silblock Masonry Water Repellents on Various Substrates

Substrate Silblock WSR Silblock WA Silblock LD CoatOSil* 2059 Silblock SO Silblock LO-N

Concrete G E S G E E

Clay Roof Tiles E E G G S S

Exterior Plaster E E G G G S

Calcium Sil Brick E E G E E E

Light Concrete E E G G S E

Natural Stone E G S G E G

Clay Brick E E G G E E

Horizontal Barrier E G G G G S

Terracotta E E S G E S

Saltillo E E S G E S

Marble E G G E G G

Granite E G G E G G

Lime Sandstone E S S E S S

Legend: E = Excellent

G = Good

S = Suitable


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Overview: Silblock Masonry Water Repellents

Silblock WSR Speciality siloxane emulsion. This emulsion combines oleophobic and hydrophobic behavior

masonry water repellent in a single product, typically resulting in an outstanding reduction of capillary water

absorption and stain resistance. May be considered for application to highly alkalinebuilding materials such as fresh concrete, plaster, calcium silicate brick, fibrous cement

and expanded concrete.

Silblock WA Solvent-less, water-thinnable emulsion of a combination of alkyl alkoxysilane and alkyl

masonry water repellent alkoxysiloxane. May be considered for use on common substrates, and may be particularly

beneficial on highly alkaline mineral substrate, and for fine-pored building materials, such

as concrete.

Silblock LD Solvent-less, water-thinnable emulsion of a more highly alkylated alkoxysiloxane.

masonry water repellent May be considered for waterproofing during manufacture and for highly absorbent

mineral building materials.

CoatOSil* 2059 Emulsion of an amino functional siloxane. May be considered for calcium carbonate based

masonry water repellent substrates such as marble, limestone and calcium silicate brick. This product may also

impart stain resistance on marble substrates.

Silblock LO-N Solvent-less alkoxysiloxane, may be considered for highly alkaline mineral substrates.

masonry water repellent Typically good penetration.

Silblock SO Solvent-based specialty siloxane. This emulsion combines oleophobic and hydrophobic

masonry water repellent behavior in a single product, typically resulting in an outstanding reduction of capillary

water absorption and stain resistance. May be considered for application to highly alkaline

building materials such as fresh concrete, plaster, calcium silicate brick, fibrous cement and

expanded concrete.

Silblock F Polysiloxane emulsion may be considered for use as masonry paint additive. This emulsion

masonry paint additive may provide high vapor permeability and low water absorption.


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Typical Product Detail: Silblock Masonry Water Repellents

Water Dilutable Masonry Water Repellents

Silblock WSR Silblock WA Silblock LD CoatOSil* 2059

Product Type Emulsion Emulsion Emulsion Emulsion

Active Substance 30% 60% 35% 35%

Content

Appearance White White White White

Potential Uses Oleophobic and hydrophobic Faade impregnation Faade impregnation Marble and limestone

treatment of mineral In factory treatment In factory treatment stain resistance

substrates Water proofing additive treatment

for concrete

Typical Features 1. Superior water repellency 1. Long dilution stability 1. Oldest water-based 1. Beading effect

2. Good stain resistance 2. Patented technology 2. Compatible with calcium

3. Good storage stability manufacturing process 2. Recommend for large carbonate substrates

3. Stable emulsion pored substrate 3. Stain resistance

4. Dense substrate penetration

Composition Siloxane emulsion with fluoro Solvent-less siloxane / Solvent-less alkylated Emulsion of an amino

alkoxysilane emulsion alkoxy siloxane emulsion functional siloxane

in water in water

Specific Gravity 1.025 0.98 1.06 0.99

Recommended Dilution 1:5 - 1:2 1:11 - 1:5 1:6 - 1:3 1:6 - 1:3

pH 5 to 6 8 to 10 7 to 8.5 N/A

Flash Point C (F) >100 (>212) by DIN 51758 90 (194) by DIN 51758 >100 (>212) by DIN 51758 >100 (>212)

VOC (g/L) in form supplied 202(1) 298(1) 80(1) 121(1)

(1) VOC determined in accordance with procedures outlined in EPA Method 24

Solvent Dilutable Masonry Water Repellents

Silblock SO Silblock LO-N

Product Type Solution Pure substance

Active Substance 30% 100%

Content

Appearance Colorless to yellowish Yellow

Potential Uses Oleophobic and hydrophobic Faade impregnation

treatment of mineral

substrates

Typical Features 1. High vapor permeability 1. Color enhancement

2. Superior water repellency 2. Good barrier properties

3. Good stain resistance

4. Good storage stability

Composition Silane ester oligomer Solvent-less alkylated

solution alkoxy siloxane

Specific Gravity 0.8 1.1

Recommended Dilution 1:5 - 1:2 1:17 - 1:10

pH N/A N/A

Flash Point C (F) 36 (97) by DIN EN 13736 35 (95) by DIN 51758

VOC (g/L) in form supplied >700 224(1)

(1) VOC determined in accordance with procedures outlined in EPA Method 24

Suitable solvents are anyhydrous aliphatic or aromatic hydrocarbons. Examples of such solvents includetoluene, xylene, or mineral spirits, IsoparG and Tarksone.

Isoparis a registered trademark of Exxon Mobil Corporation.


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Typical Product Detail: Silblock Masonry Water Repellents (continued)

Masonry Paint Systems

Paint Additive Primer

Silblock 3657 Silblock F Silblock WA Silblock LD

Product Type Emulsion Emulsion Emulsion Emulsion

Active Substance 54% 60% 60% 35%

Content

Appearance White White White White

Potential Uses Co-binder in silicone masonry Co-binder in silicone masonry Deeply penetrating primer Primer

paints/plaster paints/plaster Additive to silicone masonry

Co-binder in flexible silicone Additive to masonry paints/plasters for

masonry paints paints/plasters improved water resistance

Additive to masonry and beading

paints/plasters

Typical Features Cost/efficient formulations Most universal paint Patented manufacturing Oldest water-based

Used primarily with stryene additive process technology

acrylics Used with straight acrylics Long dilution stability Recommended for large

Excellent scrub resistance Stable emulsion pored substrate Dense substrate penetration

Total Weight Blend Ratio: 70-85 : 30-15 Ratio: 70-85 : 30-15 Dilute down to 5% active As primer dilute down

(acrylate : silicone) (acrylate : silicone) for priming 5% active

As additive dilute down

1% on paint

Composition Resin emulsion Siloxane Solvent-less siloxane/ Solvent-less alkylated

alkoxysilane emulsion alkoxy siloxane emulsion

in water in water

Specific Gravity 1.07 1 0.98 1.06

pH 5.5 to 8.5 5.5 to 7 8 to 10 7 to 8.5

Flash Point C (F) >100 (>212) >100 (>212) 90 (194) >100 (>212)

Note: Formulation Guides are available upon request.


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Product Safety, Handling and Storage

Customers considering the use of this product should review

the latest Material Safety Data Sheet and label for product

safety information, handling instructions, personal protective

equipment if necessary, and any special storage conditionsrequired. Material Safety Data Sheets are available at

www.momentive.com or, upon request, from any Momentive

Performance Materials representative. Use of other materials

in conjunction with Momentive Performance Materials products

(for example, primers) may require additional precautions.

Please review and follow the safety information provided by

the manufacturer of such other materials.

Limitations

Customers must evaluate Momentive Performance Materials

products and make their own determination as to fitness of use

in their particular applications.

Emergency Service

Momentive Performance Materials maintains an around-the-clock emergency service for its products. The American Chemistry Council

(CHEMTREC), Transport Canada (CANUTEC), and the Chemical Emergency Agency Service also maintain an around-the-clock emergency

service for all chemical products:

Location Momentive Performance Materials Products All Chemical Products

Mainland U.S., Puerto Rico 518.233.2500 CHEMTREC: 800.424.9300

Alaska, Hawaii 518.233.2500 CHEMTREC: 800.424.9300

Canada 518.233.2500 CANUTEC: 613.996.6666 (collect)or CHEMTREC: 800.424.9300

Europe, Middle East, Africa +32.(0)14.58.45.45 (Belgium) CHEMTREC: +1-703.527.3887 (collect)

Latin America, Asia/Pacific, +518.233.2500 CHEMTREC: +1-703.527.3887 (collect)all other locations worldwide

At sea Radio U.S. Coast Guard, which can directly contact Momentive Performance Materials at 518.233.2500 or

CHEMTREC at 800.424.9300.

DO NOT WAIT. Phone if in doubt. You will be referred to a specialist for advice.

Patent Status

Technical subject matter in this publication is described and

protected by one or more of the following U.S. Patents and

their foreign counterpart patents and/or patent applications:

U.S. Patent No. 5,531,812. Other U.S. and foreign patents and/orpatent applications not listed covering the subject matter may

be relevant.


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*Silblock and CoatOSil are trademarks of Momentive Performance Materials Inc.

Momentive and M-design logo are trademarks of Momentive Performance Materials Inc.Copyright 2008 Momentive Performance Materials Inc. All rights reserved.

113-601-00E-GL05/08

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