High Performance

Polyurethane Synthetic Patch™, Epoxy,

and Water-Based Putty

Quality Patching Compounds from Willamette Valley Company (WVCO)

� Polyurethane (PU) � Epoxy � Water-Based Wood Putty

� PU and Epoxy Metering & Dispensing Equipment Systems � Putty Pumping and Dispensing Equipment Systems

WVCO Products

� Easy application - WVCO metering systems and hand application.

� Custom modification meeting mill requirements – set

times, hardness, compatibility with downstream processes.

� Non-shrink options.

� Quick to sand, plane, or machine.

� Large variety of colors - custom colors available.

Polyurethane Synthetic Patch™ and Epoxy WVCO Polyurethane Synthetic Patch™ and Epoxy products are two-

component patching compounds are designed to repair defects, upgrade and

add value to your wood products. When A and B components are mixed

together a chemical reaction occurs that results in a quick transition from liquid

to solid form.

1. Polyurethane Synthetic Patch™ - (PU)

PU is pumped and metered through Willamette Valley Company

equipment systems and dispensed via hand-held guns or automatic

valves fitted with a static mix tube. PU is the solution for most high

volume requirements for the repair of knots and splits in plywood face

veneer, laminated beams, edge-glued panels, solid wood, moulding,

sash and door, and other wood products.

Most formulas are metered at a 6:1 ratio, A to B (resin & MDI

isocyanate). Flow is quick and uniform as it is dispensed to repair points.

Chemical reaction transitions from liquid to solid within 15-90 seconds

depending the formula and environmental variables. Cured polyurethane

can be sanded, planed, or machined. Specific formulas are compatible

with overlay film, laminating glues, stains, sealers, and paints.

2. Epoxy

The WVCO series of epoxy formulas allow both equipment metering and

hand-mix and applied options. Epoxies are mixed at a 1:1 ratio, A to B.

Pigments are contained in the B component to provide a visual mixing

reference for hand mixed and applied formulas.

Epoxy is a solution for specialty high volume requirements and all

medium to small operations. Epoxy is used to repair knots and splits in

plywood face veneer, laminated beams, edge-glued panels, solid wood,

moulding, sash and door, and many other wood products. Specific

formulas are compatible with overlay films (PSF, Melamine, MDO, HDO,

etc.), laminating glues, stains, sealers, and paints.

Epoxy is the product for repairing plywood prior to the texturing process

used to produce rough sawn panel siding.

The WVCO epoxy series offers a variety of set times accommodating all

production requirements. Cured epoxy can be sanded, planed, or

machined.

Standard and custom colors are available.

All products meet or exceed APA - American Plywood Association

testing requirements.

Water-based Putty Water-based putty is formulated for filling small surface defects found in a wide

variety of wood products. Putty dries to a solid form as the water content

evaporates. Water-base putty exhibits minimal shrinkage when dried, thus

overfilling is recommended prior to sanding.

There are three general types of water-base putty:

1. WB 264 Knife Grade Face Putty - Hand Applied with Putty Knife

2. WB 264 Gun Grade Face Putty - Pumped to Putty Gun

3. WB Machine Grade – Putty Knife or Putty Gun for Vertical Repairs

Available Containment:

� IBC (tote) Container - 1.000 L / 265 gal.

� Steel Drums - 200 L / 55 gal.

� Plastic Pails - 19 L / 5 gal.

All containers U.N. approved

Polyurethane Synthetic Patch™ - APPLICATION

1. Metered Application

Polyurethane Synthetic Patch™ is delivered by WVCO metering

equipment to hand-held dispensing guns in perfect ratio. Essential

training of line operators and maintenance personnel is provided.

A and B chemicals meet and mix in the static mix tube attached to the

dispensing gun. The system is designed for high production repairs, thus

to accommodate intermittent stops or end of shift, a water flush

mechanism cleans the mix tube of chemical prolonging its use.

Triggering the chemical for 2-3 seconds purges the water to resume

work.

Heated Trace Lines control the temperature of the A chemical, which

allows acceleration of set time (reaction speed) and viscosity (flow

characteristics).

Temperature control is a seasonal advantage, whereby the same

chemical can be adjusted to set quickly in cold winter months or slower

in the hot summer, conveniently accommodating your process

requirements.

2. Automatic and Robotic Application The Precision Technologies Division (PRE-TEC, www.pre-tec.com) of

WVCO has defined itself by applying scientific knowledge and innovative

manufacturing techniques to the development of turn-key solutions.

Pre-Tec specializes in the design and manufacture of custom metering,

proportioning, and dispensing systems. These systems fit variety of

industrial applications that require accurate proportioning and dispensing

of single and multi-component liquid materials. The systems are

designed to meter and dispense polyurethane, epoxy, putty, and a

variety of primers, paints, sealers, and adhesives.

Partnering through service means one-on-one interaction with each

customer to develop the most appropriate, affordable, and reliable

solutions for your service needs. PRE-TEC in cooperation with Surface

Solutions GmbH offers support in areas of training, programming, spare

parts, and preventive maintenance.

Router removing loose knot material

Mix tube applying polyurethane

Metering Systems and Spare Parts

PRE-TEC is a powerful team of innovative

individuals who know how to change ideas into

reality, ensuring customer’s needs are

understood and producing solutions to address

those needs.

Standard Features and Options:

o Process Development

o Multi-axis Configurations

o End-of-Arm Tooling and Fixturing

o Programmable Force Control Applications

o Material Conveyance subsystems

o PC-Based Software

o Ethernet/IP Communication

o ANSI & OSHA-compliant Safety Enclosures

o State-of-the art sensor technologies

o Project Documentation

o Process / Product Tracking

o Training and Start-up Assistance

o Maintenance and Service Programs

Dual Divorced 6:1 CE Metering System Complete 220 VAC Single Phase.

- Two (2) Meter (6:1 ratio unless otherwise specified)

- One (1) Stand for Pumps

- Two (2) Rail Mount For Meter with Boom and Counterbalance

- Four (4) Pumps (2-A, 1-B, 1-Flush)

- One (1) Supply Suction Hose Package (A and B)

- Two (2) 25 Foot Long Supply Line Package (including 15 feet ½-inch heated trace line for “A” - Please note: additional hose length not supplied and not recommended. Design changes, or added length are at the sole risk of purchaser.

- Two (2) 20 Foot Dispense Line Package (including 15 feet ¼-inch heated trace line for “A”)

- Two (2) Dual Heat Controller

- One (1) U-2500-B Dispensing Valve Assembly

- One (1) Spare U-2500-B Dispensing Valve Assembly

- One (1) U-2500-B Repair Kit

- Two (2) Operations Manuals (plus pdf format)

Single Divorced 6:1 CE Metering System Complete 220 VAC Single Phase.

- One (1) Meter (6:1 ratio unless otherwise specified)

- One (1) Stand for Pumps

- One (1) Rail Mount For Meter with Boom and Counterbalance

- Three (3) Pumps (1-A, 1-B, 1-Flush)

- One (1) Supply Suction Hose Package (A and B)

- One (1) 25 Foot Long Supply Line Package (including 15 feet ½-inch heated trace line for “A” - Please note: additional hose length not supplied and not recommended. Design changes, or added length are at the sole risk of purchaser.

- One (1) 20 Foot Dispense Line Package (including 15 feet ¼-inch heated trace line for “A”)

- One (1) Dual Heat Controller

- One (1) U-2500-B Dispensing Valve Assembly

- One (1) Spare U-2500-B Dispensing Valve Assembly

- One (1) U-2500-B Repair Kit

- Two (2) Operations Manuals (plus pdf format)