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wood repair


Restore, Salvage & Strengthen Soft or Rotted Wood


PC-Petrifier® is a single component adhesive, formulated to fully penetrate and revitalize rotted wood. Modern technology has allowed us to develop a water base wood consolidant that is environmentally friendly. PC-Petrifier's® low viscosity allows deep penetration into soft rotted wood fiber, restoring old wood to near structural integrity. Seal and restore rotted soft wood fibers in window sills, sashes, frames, trim, decorative beams and columns, etc.

PC-Petrifier® can also be used to prepare old wood for priming and painting. Apply to exposed wood grain to protect from damage. Not for structural repairs. If you have structural wood damage, please see our PC-Rot Terminator®. Do not use in conjunction with Borate products.


Directions: Area to be treated must be dry, free of dirt, dust and grease. Remove loose paint varnish or flaky wood. Generously apply PC-Petrifier® by pouring, spraying, brushing or sponging onto area to be restored. Repeatedly saturate the rotted wood fibers to enable the deepest possible penetration. Let cure until solid and not tacky to the touch.

Additional Information

Available Sizes - Links to Purchase:

  • PART #
  • 8 FL OZ
  • 084441
  • Buy From Grainger  Home Depot  Buy From The Paint Store  Amazon Supply
  • 16 FL OZ
  • 164440
  • Buy From Grainger  Buy From Home Depot  Buy From The Paint Store  Amazon Supply
  • 1 Gallon
  • 128442
  • Buy From Grainger  Buy From Home Depot  Buy From The Paint Store  Amazon Supply
  • 5 Gallon
  • 640449
  • Buy From Grainger  Home Depot  Buy From The Paint Store  Amazon Supply

Application Tips:

Since the depth of penetration may depend on the porosity of the wood, to get deeper penetration drill or poke small holes to allow access down to solid wood. On painted surfaces drill small holes (1/8 inch or larger) to allow access to soft wood. When restoring a vertical surface; drill holes in a downward angle and then saturate with PC-Petrifier®. If needed, apply more PC-Petrifier® to affected area. Normally one treatment will be sufficient. After area is restored, fill holes and missing wood with PC-Woody® epoxy. Best results are obtained when applying at temperatures above 45°F to dry wood. Successful application depends on the wood’s dryness, porosity and preparation.

Many uses.

Powder PC-Petrifier® is great for sealing and restoring rotted soft wood fibers found in window sills, sashes, frames, trim, fences, decks, paneling, log homes, playground equipment, picnic tables, cellar doors and planking (exposed end grain). PC-Petrifier® can be used to prepare old wood for priming and painting. For structural wood repair use PC-Rot Terminator® epoxy consolidant.
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:
  • Milky White
  • Cure for Service:
  • 24 Hours
  • Maximum Cure:
  • 3-7 Days
  • Conduction (Electric):
  • Non Conductive
  • Thermal Shock:
  • Excellent
  • Toxicity:
  • Non Toxic Once Cured
  • VOC:
  • Not Greater than 125 g/l

Technical Data