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wood repair

PC-Woody

Permanent Interior/Exterior Wood Repair

pc-woody

Description:
PC-Woody® is an epoxy paste formulated to replace missing and rotted wood. It has structural strength greater than most wood. PC- Woody® is a permanent wood repair for interior and exterior applications. This epoxy is made from real wood and has many characteristics of wood. PC-Woody® formulation provides extended working time, for large and critical jobs, which allows the user time to reposition work or make changes. High “wet grab” or tack of PC-Woody® makes overhead and sidewall work easy without drip or sag. PC- Woody® demonstrates excellent resistance to all weather elements, mildew dry rot, UV light, fresh and salt water, and also chemicals present in pressure-treated wood.
***Note: PC-Woody® will not bond to wax paper, Teflon®, Polyethylene, and some other plastics. There are hundreds of plastics in thousands of combination. Test a small area when in doubt.

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Directions:
Using separate knives to remove amount needed, mix equal parts A (off white) and B (light brown) on a flat clean surface until a uniform color is achieved. Surfaces to be bonded must be free of dirt, oil, rust, etc. For best results, rough up the surface PC-Woody® will be bonding to. Normally, no vice or clamp is needed. Prop or tape heavy objects to a wall or ceiling.

Apply PC-Woody® in any thickness to both sides of surface and bring together firmly. Be careful to insure that ample amount of PC-Woody® remains between the contact surfaces. Use screen wire or fiberglass cloth to reinforce large voids and gaps.

Denatured alcohol is excellent for smoothing applied PC-Woody®. Also use Denatured alcohol to clean surfaces before applying.

After cure: Paint, Stain, Drill, Machine, Sand, File, Tap, or Saw.

Additional Information

Available Sizes - Links to Purchase:

  • UNIT SIZES
  • PART #
  • PURCHASE LINKS
  • 1.5 OZ
  • 023334
  • Buy From Grainger  Home Depot  Buy From The Paint Store  Amazon Supply
  • 6 OZ
  • 083338
  • Buy From Grainger  Buy From Home Depot  Buy From The Paint Store  Amazon Supply
  • 12 OZ
  • 163337
  • Buy From Grainger  Buy From Home Depot  Buy From The Paint Store  Amazon Supply
  • 48 OZ
  • 643334
  • Buy From Grainger  Buy From Home Depot  Buy From The Paint Store  Amazon Supply
  • 96 OZ
  • 128336
  • Buy From Grainger  Buy From Home Depot  Buy From The Paint Store  Amazon Supply
  • 90 LB
  • 903339
  • Grainger  Home Depot  Buy From The Paint Store  Amazon Supply

Mixing Tips:

In cold or cool temperatures, place PC-Woody® containers near heat prior to using. PC-Woody® mixes and spreads easier at 80°F than at 40°F. Any clean smooth flat surface is an excellent surface for mixing and working. A small putty knife or flexible artist spatula are great tools for mixing and applying PC-Woody®.

Denatured alcohol is excellent for smoothing applied PC-Woody®. Also use Denatured alcohol to clean surfaces before applying.

***Note: Most epoxies are temperature sensitive and will cure faster at higher temperatures and slower at cooler temperatures. Speed cure with artificial heat.

How to tint PC-Woody®:

Critical Applications, TEST FIRST!
Click for printable version of tinting/staining info.

  1. Measure equal amounts of part A (off white) and part B (light brown).
  2. Mix the pigment into part A (white) until preferred color is achieved. Exact color matching is difficult and may require assorted pigment colors.
  3. Combine part A with part B when the desired color is reached.

Pigments come in three forms: powder, paste, and liquid.

pigments
  • Powder pigments are by far the pigment type of choice. Powder pigment is preferred because less is needed to reach desired color.
  • Paste pigments are an option if powders are not available. With paste pigments bold colors may not be achieved. DO NOT exceed more than 5% volume of combined A (off white) and B (light brown). More than 5% will affect the integrity of the chemical properties of PC-Woody® and is not recommended.
  • Liquid pigments are not recommended (example – food dye).

Staining PC-Woody®:

PC-Woody® can be stained, but the type of stain will affect the color of the PC-Woody®. The best stains contain pigments. The stain contains pigments if the can has sediment at the bottom of the can. This sediment must be stirred before using the stain. Pigmented stains have more hiding power than other stains. Other stains sometimes contain only dyes. Advice: PC-Woody® cures to a light tan color. It does not have the various shading found in real wood. PC-Woody® is capable of absorbing some stain but it is not as porous as real wood. By staining PC-Woody®, the result is usually a light shade of the stain used.

Before using PC Woody®, it is very important to test the final color against the item you're repairing by preparing a small sample and letting it cure. Then, stain the sample. If the stained PC Woody® does not produce the desired result, consider pre-tinting the PC Woody with pigment tinting pastes or raw pigment powders.

Try some of these steps / hints:

  • After PC-Woody® has cured, sand by hand with coarse sandpaper (100 -120 grit)
  • Sand with the grain of the wood.
  • Add grain to the repair with staining markers or artists paint brush.
  • Stains such as ZAR®, Barkley® and McCloskey® contain greater quantities of pigment and seem to work well with PC-Woody®.

PC-Woody® has hundreds, if not thousands of uses.

Repair: Log Homes, furniture, window & door sills and much more.
View All Uses

What Causes Wood Rot

The microscopic organisms that discolor and decay wood belong to a group of primitive plants known as fungi. Unable to produce their own food, fungi feed instead on natural substances (symbiosis) that make up organic materials like leather, cloth, paper, and of course wood.

These organisms release millions of dust-size spores that are distributed by air movement. These spores germinate, producing thread-like filaments called hyphae. The enzymes secreted by hyphae break down organic matter so fungi can feed on it.

Before this fungi can attack wood, certain requirements must be met: oxygen must be present, temperatures must be in the 40 to 100 degree Fahrenheit range, there must be a supply of sufficient moisture, and there has to be a food source . Infection can be prevented by eliminating any one of these requirements.

The most effective "method" of preventing fungal deterioration of wood is to keep it dry. The decay of the wood is caused by the chemicals dissolving nutrients in the wood, the nutrients are then absorbed by the fungal hyphae, enabling the growth to take place. If the moisture content is high enough the growth extends through the wood via a network of fine threads called mycelium. As with any fungus, the spores are ever present in the dormant stage, awaiting proper conditions to grow. At this time, some of the filaments penetrate below the surface, first softening and then destroying the wood.

Types of Wood Rot

Decay fungi fall into three major groups: brown rots, white rots, and soft rots.

Brown Rot

Brown rots are so-named because infected wood turns dark brown. When dried, wood previously infested will turn to powder when crushed. Many times, old infestations of brown rot which have dried out are labeled as "dry rot." This is really a deceiving term since wood will not decay when dry.

White rots show a white, gray-white, yellow-white, or bleached appearance to wood. Most often infecting hardwoods. In advanced stages of decay, white-rotted wood is spongy, has a stringy texture, and lacks the checking of brown-rotted wood. A thin black line often marks the advancing edge of white rot in hardwoods.

Rotted Fence

Soft Rots: Most decay fungi are unable to conduct water very far and can only attack moist wood. However, Poria incrassata, called dry rot or the water-conducting fungus, will decay wood which would not be attacked by typical decay fungi. Poria infested wood is often mistakenly identified as subterranean termite damage. This type of fungus can transport water for several feet through large root-like structures called rhizomorphs. Once established, it can quickly spread through a building and destroy large areas of flooring and walls in as little as a year or two.

Insect Damage

Termite Colony

Subterranean termites are the most destructive insect pests of wood in the United States. They cause more than $2 billion in damage each year: more property damage than is caused by fire and windstorm combined. Several species of subterranean termites are found in the United States; they live in every state except Alaska.

Carpenter ants damaged wood by hollowing it out for nesting. Their excavated galleries in the wood have a smooth, sandpapered appearance. Wood which has been damaged by carpenter ants contains no mud-like material, as is the case with termites. Shredded fragments of wood, similar in appearance to coarse sawdust, are ejected from the galleries through preexisting cracks or slits made by the ants.

Termite Worker

Powderpost beetles are so called because in high numbers they are able to turn the inside of a piece of wood into nothing more than a mass of fine powder. These wood destroying beetles can do significant damage to log homes, furniture, wood floors and structural timbers in your home. Powderpost beetles are small (1/8 inches) and the adult beetles are seldom seen. Most of the life cycle is spent in the grub or larvae stage eating wood. Damage is done by the larvae as they create narrow, meandering tunnels in wood as they feed.

Physical Properties

  • Color (Component a):
  • Off White
  • Color (Component B):
  • Light Brown
  • Color (Mixed):
  • Pine or Tan
  • Work Time (70°F):
  • 30-40 Minutes
  • Tack Free Cure Time:
  • 90 Minutes
  • Cure for Service:
  • 24 Hours
  • Maximum Cure:
  • 7 Day
  • Gardner Impact Resistance:
  • 100 in./lb
  • Elongation:
  • 5-7%
  • Conduction (Electric):
  • Non Conductive
  • Thermal Shock:
  • Excellent
  • Toxicity:
  • Non Toxic Once Cured
  • Heat Range:
  • -20 to 200°F

Test Methods/Results

  • Tensile Shear Strength
  • ASTM D 1002
  • 850 PSI
  • Compressive Yield
  • ASTM D 695
  • 2340 PSI
  • Flexural Strength
  • ASTM C 580
  • 1280 PSI
  • Water Absorption
  • ASTM C 413
  • 0.44%
  • Weight(Specific Gravity)
  • ASTM D 792
  • .72g/cm³ .42oz/in³
  • Hardness Shored
  • ASTM D 2240
  • 50-55 (1wk)
  • Heat Deflection
  • ASTM D 648
  • 120°F

Technical Data

Spanish/French