Epoxy can give wood a waterproof, resilient finish. However, there are some cases where it is not advisable to use epoxy as a finish, but you can still get the benefits of epoxy by using it as a sealer before applying your finish coat.

People also ask, what do you seal wood with before epoxy?

If your surface has an oil based stain or oil based paint, you must apply 2-3 coats of oil based polyurethane before doing the seal coat. The epoxy seal coat will not stick to an oil based stain or oil based paint. The polyurethane will cover that and allow the epoxy to stick.

Likewise, how do you prepare wood for epoxy? Surface Preparation

  1. Clean. Epoxy bonding surfaces must be free of any contaminants such as grease, oil, wax or mold release. Clean contaminated surfaces with lacquer thinner, acetone or another appropriate solvent.
  2. Dry. All epoxy bonding surfaces must be as dry as possible for good adhesion.
  3. Sanded.

Also asked, what kind of epoxy should I use on wood?

Pro Marine Supplies is the best epoxy resin that I used. This epoxy contains no VOCs and provides great coverage. Also, Pro Marine cures harder and more quickly than most epoxy resins. When it comes to creating a beautiful wooden table top, the epoxy resin is off the charts, period.

Should you seal wood before epoxy?

In most cases, it is an ideal coating for wood projects that will be exposed to moisture or wear. However, there are some cases where it is not advisable to use epoxy as a finish, but you can still get the benefits of epoxy by using it as a sealer before applying your finish coat.

Related Question Answers

Do I need to seal wood before epoxy?

The Epoxy Resin sinks into the Wood

For any porous surfaces such as wood, it is particularly important to seal the surface first. You do not need a separate product for this, rather you can simply apply a thin layer of resin to the wood and let it cure.

What does epoxy resin not stick to?

Epoxy resin adhesives will bond all woods, aluminum and glass well. It does not bond to Teflon, polyethylene, polypropylene, nylon, or Mylar. It bonds poorly to polyvinyl chloride, acrylic and polycarbonate plastics. The only way to tell if an epoxy will bond to a material is to try it.

Can epoxy be applied to wood?

Epoxy paint is a 2-part coating, consisting of a catalyst and a resin. Epoxy paint is ideal for concrete surfaces, such as in basements and garages; it can also be used to coat wood floors. However, before the wood will accept the epoxy, a few important preparation steps are required.

Does polyurethane make wood waterproof?

The answer is no, polyurethane does not make wood waterproof even if you coat all sides and ends with multiple coats… at least not for very long. Wood expands and contracts and naturally contains moisture even when kiln dried. Epoxy is likely as tough and waterproof a finish as you'll get…

Do you sand between coats of epoxy?

Then you‘ll begin sanding epoxy resin between coats. Sanding epoxy isn't hard, but you‘ll want to be thorough! Sand the entire piece evenly. It will look terrible when you finish sanding it, but don't worry.

How thick can you pour epoxy resin?

Water-clear, high-gloss, low-viscosity, pourable epoxy resin lets you pour single layers up to 1″ thick for larger applications, and up to 2″ thick for smaller molds.

Can you epoxy over varnish?

As a general rule, epoxy should not be applied over other coatings. An exception is water-based stain (assuming it has been left to dry thoroughly) but anything containing solvents might cause damage to the epoxy layer, or the epoxy might soften the varnish/stain.

How strong is epoxy on wood?

As long as the epoxy is worked into the wood with a brush. It's also incredibly strong, offering a tensile strength of 7,000 PSI when cured. It does not shrink when curing and remains flexible (even when fully cured) and will cure in temperatures as low as 35oF.

Why is epoxy so expensive?

Epoxy is generally more expensive than resin, due to its strength and formulation requirements. Resin is more popular for craft and jewelry making,due to its lower cost. Remember, however, that you get what you pay for. Epoxy is very moisture resistant, and certain formulations can even be applied underwater.

Can you run epoxy resin through a planer?

You can use a planer with resin. Since the blades only touch the wood once in each location as it goes through, there won't be any significant heat buildup. Be careful of all the resin shavings, wear a respirator. You can start sanding around 100 grit and go up from the planer finish and get a good result.

Can you epoxy green wood?

I have been told that you can use a good epoxy to finish green wood and by sealing all sides you wouldn't have to let the wood dry first. I keep WEST System 105 epoxy resin in the shop and would probably use it for the finish.

Can you hand plane epoxy?

A hand plane cuts epoxy very well, taking glue shavings! This occurred at the edge of the epoxy, the blade can get under the very edge and lift a section of epoxy away from the wood – so it's better to plane from epoxy onto the wood, not the other way around.

How do you weatherproof wood?

There are three surefire ways to waterproof your wood for years to come.
  1. Use linseed or Tung oil to create a beautiful and protective hand-rubbed finish.
  2. Seal the wood with coating of polyurethane, varnish, or lacquer.
  3. Finish and waterproof wood simultaneously with a stain-sealant combo.

How do you seal wood?

Most stains should be sealed to prevent bleeding. After smoothing the stained wood, apply a sealer coat of thinned shellac, sanding sealer, or other appropriate sealer. Do not use shellac with NGR or water-base stains. If you plan to finish the piece with polyurethane, make sure the sealer is compatible.

Does epoxy soak into wood?

Straight epoxy should soak into the wood enough to seal it and keep it from getting wet, but won't add much if any structural value. Cutting your epoxy with solvents is unlikely to work too well; it may thin the resin, but it'll also weaken it, defeating the purpose.

Can you apply epoxy with a brush?

Yes, epoxy resin can be used as a glue. In fact, it may be the strongest glue you will ever use! Mix and stir as usual, and apply as necessary with a brush or foam brush.

Can you epoxy on top of epoxy?

Can I put another coat of epoxy over cured epoxy? Yes. Since the epoxy has cured a chemical bond is not possible so what is called a mechanical bond is needed. This simply means that the cured epoxy has to be lightly sanded before the next coat is applied: the first coat should have a matt, almost white, surface.

Can you roll on epoxy?

The only recommended way to coat vertical surfaces with epoxy is the roll and tip method. Roll the epoxy on with a foam roller, then “tip” by dragging another roller across the surface to smooth the epoxy layer.

Can I use food coloring in epoxy resin?

For the hell of it, mixed some food coloring into the 5-minute epoxy resin. I mixed the two part epoxy together and added a few drops of food coloring. I used green first.