TotalBoat Penetrating Epoxy Resin Gallon Kit
TotalBoat Cold Weather Penetrating Epoxy Gallon KitApplying TotalBoat Penetrating Epoxy to a Wooden TransomUsing a syringe to inject Penetrating EpoxyTotalBoat Penetrating Epoxy Applied to Wooden Boat PartsTotalBoat Penetrating Epoxy Applied to a SkateboardTotalBoat Penetrating Epoxy Applied to Decayed Wood

Penetrating Epoxy


Our low-viscosity epoxy sealer penetrates deeply to preserve, protect, and repair wood. Use it to restore damaged, rotten wood or to seal new wood. Environmentally friendly formula contains no harmful VOCs and no odor.

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Product Description

  • Clear, low-viscosity epoxy penetrates and seals for maximum protection
  • Restores rotted or damaged wood by creating a solid, flexible, mechanically sound bond
  • Easy to use formula seals new, porous wood to prevent cracking, checking, and rot
  • Available in two formulas: Regular (65-90°F) and Cold Weather (40-65°F)


How To Seal Wood To Prevent Moisture Damage


Here’s an easy way to help make new or existing bare, unfinished wood last longer with our easy-to-use, penetrating epoxy sealer. The key is to use small batches, mixing only as much as you can apply in 20 minutes. See the Technical Data Sheet for details.

What You’ll Need:



  • Start with clean, dry, bare, unfinished wood.
  • Dampen a clean, dry rag with acetone and wipe the surface to remove contaminants.
  • Let the surface dry completely.
Surface Prep for TotalBoat Penetrating Epoxy


  • Mix only as much as you can apply in 20 minutes.
  • Pour or use the 2:1 pumps to dispense 2 parts resin to 1 part hardener (by volume) into a clean, dry plastic cup.
  • Stir for 2 minutes to mix completely.
Measuring TotalBoat Penetrating Epoxy Resin & Hardener


  • To increase penetration, add acetone or denatured alcohol. Add solvent up to equal the amount of mixed epoxy.
  • Stir to mix completely.
Thinning TotalBoat Penetrating Epoxy with acetone.


  • Apply epoxy immediately after mixing.
  • Let it dry till it’s tacky to the touch, and apply a second coat.
Using a Brush to Apply TotalBoat Penetrating Epoxy


  • After curing, remove any amine blush by washing the surface with mild soap and warm water. Let it dry completely.
  • Cured epoxy can be sanded lightly, then painted or varnished.
  • Cured epoxy is 100% waterproof.
Let TotalBoat Penetrating Epoxy Cure Completely

How to Repair Rotted Wood

Repairing and restoring rotted wood is easy with TotalBoat Penetrating Epoxy because it glues wood fibers back together and seals wood pores to stop rot and prevent future rot. The key is to mix Penetrating Epoxy in small batches — mix only as much as you can apply in 20 minutes. See the Technical Data Sheet for detailed instructions.

What You’ll Need:



  • Start with a clean, dry surface. Solvent wipe with acetone to remove dust and contaminants.
  • In areas of deep rot, drill a series of holes in the decayed wood.
Drilling Holes to Prep for Injecting TotalBoat Penetrating Epoxy


  • Mix only as much as you can apply in 20 minutes.
  • Pour or use the 2:1 pumps to dispense 2 parts resin to 1 part hardener (by volume) into a clean, dry plastic cup.
  • Stir thoroughly for 2 minutes, then apply immediately.
Dispensing TotalBoat Penetrating Epoxy Resin and Hardener


  • Use a syringe or brush to apply liberally.
  • Give the epoxy time to sink in.
  • If additional coats or injections are needed, allow epoxy to reach a tacky state before reapplication.
  • If pieces of wood are missing, apply TotalBoat Fixwood wood repair epoxy putty and shape, as needed.
Injecting TotalBoat Penetrating Epoxy to Repair Rot
Applying TotalBoat Penetrating Epoxy to Rotted Wood


  • Let it cure completely. Remove any amine blush by washing the surface with mild soap and warm water, and allow to dry completely. If desired, sand lightly and apply paint or varnish.
Allow TotalBoat Penetrating Epoxy to Cure Completely

More Details

  • Resists humidity, mold, mildew, and salt
  • Can be hot-coated to itself without sanding between coats
  • Once cured, sanded lightly, then you can prime, paint, or varnish over it
  • Cured epoxy improves adhesion of paint and varnish, extending service life
  • Penetrates more deeply and cures to a softer, more flexible material than 5:1 epoxy resins
  • Common paint solvents such as acetone may be added to increase wood saturation depth
  • Has no VOCs or harsh odor
  • Apply to new, damaged, or rotted wood
  • Available in two formulas: Regular (65-90°F) and Cold Weather (40-65°F)
  • Sizes: Available in Pint, Quart, Half-Gallon, and Gallon Kit sizes. All kits include resin and hardener.
  • Each order includes: 2 stir sticks, 2 quart-size paint pots, and a pair of latex gloves
  • NOTE: Measure the precise 2:1 ratio with the calibrated TotalBoat 2:1 Epoxy Pumps (sold separately), or manually by weight or volume
Size Penetrating Epoxy Resin (A) Quantity Hardener (B) Quantity Total Mixed Quantity
Pint Kit 1 Pint .5 Pint 1.5 Pints
Quart Kit 1 Quart 1 Pint 1.5 Quarts
Half-Gallon Kit 1/2 Gallon 1 Quart 3/4 Gallon
Gallon Kit 1 Gallon 1/2 Gallon 1.5 Gallons

High-solids, low-viscosity, no-odor formula seals and protects new wood

TotalBoat Penetrating Epoxy is designed to sink in deeper and cure stronger than other epoxies, without the odor or harmful VOCs. At a 2:1 instead of 1:1 mix, it’s only slightly thicker than other penetrating sealers, but that’s a good thing. Low viscosity and 100% solids formula means more material to fill the grain, seal the wood more completely, and provide extended protection against rot-causing moisture. And, because there are no harmful VOCs, there’s no toxic odor.

Stop active rot, strengthen wood, and prevent further deterioration beneath the surface

Our penetrating epoxy works from the inside out to saturate rotted wood deeply. It penetrates both the porous, rotted areas, and the surrounding, healthy wood. As it cures, it effectively bonds the rotted wood and the sound wood to restore structural integrity. Since it’s hard to know exactly where the rotted and the healthy wood meet, especially in cases of extreme rot, drill a series of holes into the decayed wood and inject Penetrating Epoxy to start the restoration process. It sinks deeply into dry, punky wood and strengthens it.

Make topcoats stick better and last longer

The longer an epoxy takes to go off, the deeper into wood it will seep. TotalBoat Penetrating Epoxy cures slightly slower in order to create a hard, waterproof surface that not only prevents rot, but provides a stable coating for varnish, primer, or paint to adhere to more tenaciously. Since it sticks better, it’ll stay stronger longer to keep UV-resistant topcoats from failing. The longer cure time is definitely worth the longer-lasting protection and the time and money you saved preserving existing wood.

Different formulas for different temperature ranges

For temperatures from 40-65°F, use TotalBoat Cold Weather Penetrating Epoxy. When temperatures are 65-90°F, use TotalBoat Penetrating Epoxy. Each formula provides excellent coverage and cure.


  • Mix ratio by volume: 2 parts Penetrating Epoxy Resin (Part A) to 1 part Hardener (Part B)
  • Application: Brush, roller, syringe, or epoxy spreader
  • Application @ 40°F: Pot life is 40 minutes, full cure takes 4 days
  • Application @ 80°F: Pot life is 20 minutes, full cure takes 2 days
  • Color: Clear

Application Warnings:

  • The wood must be bare and unfinished. TotalBoat Penetrating Epoxy will not penetrate and level well when applied over some stains. Always test an area first. DO NOT USE on top of Minwax oil-based stains.
  • TotalBoat Cold Weather Penetrating Epoxy should not be used as a fast-cure epoxy in warmer temperature conditions because doing so can be unsafe and result in premature exotherm, improper cure, and brittleness.

Frequently Asked Questions

Is TotalBoat Penetrating Epoxy waterproof?

Yes, once it’s cured, this epoxy is 100% waterproof.

Can I use Penetrating Epoxy on Teak wood?

Yes, you can use this on Teak wood. Generally, it is best to clean or sand the teak before applying. Being a hard wood, this product will not show nearly the saturation compared to softer, more porous woods. Many people use TotalBoat Penetrating Epoxy to seal Teak before a light sanding and applying varnish.

Can I apply paint or varnish over it?

Yes. Let it cure fully, wash with water in case of amine blush, sand smooth, clean, and then apply varnish.

Does Penetrating Epoxy dry clear or does it have a color or tint?

TotalBoat Penetrating Epoxy will dry clear.

Can I use acetone to dilute this resin?

Yes, you can double the penetrating power by mixing acetone with the epoxy resin solution in an equal volume. Denatured alcohol can also be used as a thinner.

Can I use this before or after applying a stain?

This is an epoxy adhesive / coating that will seal the wood surface to the depth it penetrates. Stain or other coating that relies on soaking into the wood will not take, and because of the penetration depth, you may not be able to sand enough thickness off to ever use stain.

What should I use to apply this sealer?

Apply to rotten wood with a brush, roller, syringe, or epoxy spreader. Allow ample time for TotalBoat Penetrating Epoxy to soak well into the wood to ensure complete saturation. Keep in mind, the wood must be bare and unfinished. The epoxy will not penetrate and level well when applied over some stains, so make sure to test a small area first before applying.

What is the working time and cure time for Penetrating Epoxy?

Pot life and cure times will depend on temperature. At 85˚F the pot life is 20 minutes and the full cure is 2 days. At 40˚F the pot life is 40 minutes and the full cure is 4 days.

How should I properly store the epoxy?

Store at 60-90°F in a dry place. After use, tightly reseal all containers. Store products on a raised surface off the floor during cold weather and avoid storing near outside walls or doors.

Can it be applied over existing finishes?

No, finishes block penetration into wood fibers.

Can it be used as a glue to fill cracks, holes, or voids?

No, this should not be used as a glue. Epoxy putties are commonly used after the application of penetrating epoxy to fill holes, cracks, seams, and other voids.

Can it be used on wet wood?

No, it is not recommended to use Penetrating Epoxy on wet wood.

TotalBoat Penetrating Epoxy Technical Data
TotalBoat Cold Weather Penetrating Epoxy Technical Data
TotalBoat 2:1 Penetrating Epoxy Resin Pumps Instructions
Penetrating Epoxy Resin Part A SDS
Penetrating Epoxy Hardener Part B SDS
Penetrating Epoxy Cold Weather Resin Part A SDS
Penetrating Epoxy Cold Weather Hardener Part B SDS

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