how to epoxy plywood countertops?

Plywood countertops are a great way to add a rustic touch to your home. They can also be very durable and easy to clean. However, plywood countertops can warp and crack over time.

Epoxy is the best option for making sure that your plywood countertops stay flat and beautiful for years to come! Here’s how to do it:

How do you prepare plywood for epoxy?

  • Clean the surface of your plywood. This can be done with soap and water, or by wiping it down with denatured alcohol.
  • Sand the surface of your plywood. You want to start with rough grit sandpaper, like 80-grit or 100-grit, and finish up with fine grit sandpaper, like 220-grit. Make sure that all splinters and rough edges are removed so they don’t get caught in the epoxy in later steps!
  • Make sure that both sides of your plywood are as smooth as possible — there should be no dust particles at all on either side; if there are any small chips or scratches then these need to be filled in before applying epoxy (we’ll talk more about this later).

Can you epoxy wooden countertops?

Plywood is a good material for epoxy countertops because it’s strong enough to support the weight of whatever you’re putting on it, but it also has enough give that it won’t crack or break under extreme stress.

Plywood and epoxy both have similar qualities—they’re tough, resilient, and will last a long time if properly cared for.

Plywood is also easy to find at your local home improvement store or lumberyard; there are many different types of plywood available in different thicknesses and grades.

You can choose between boards with a smooth surface (great for painting), those with grain showing (for an authentic look), or even unfinished plywood that needs to be sanded down before applying any kind of finish.

If you want some guidance as far as selecting the right type and grade of plywood go here

Why You Should Not Do epoxy resin countertops?

If you are considering using epoxy resin countertops, keep in mind that they are not the best choice for high-traffic areas.

Epoxy resin countertops can be damaged by water and heat, so they are not recommended for kitchens or bathrooms where water is likely to come into contact with them.

Additionally, epoxy resin countertops may crack over time if they are exposed to heat sources such as stoves or dishwashers.

How do you seal plywood countertops?

  • Prepare the plywood
  • Prepare the epoxy
  • Apply the epoxy, spreading it out as smoothly and evenly as possible
  • Let it cure for at least 12 hours before continuing on to step 5 (otherwise, you’ll ruin your countertop!)
  • Use sandpaper or a fine-grit nail file to remove any excess epoxy from around the edges of your countertop, then wipe away any excess from other parts of the project surface with a damp rag or sponge (don’t use water on top of cured epoxy or it will dissolve!)

Will epoxy stick to plywood?

Plywood, in an uncured state, is a porous material that has been saturated with glue. Epoxy will stick to plywood just fine. Plywood does not have to be flat or smooth or clean for epoxy to adhere to it.

Can epoxy be applied over plywood?

Yes! It is possible to apply epoxy over plywood, however, it’s best to use a resin that is designed for use over plywood.

You will also need a two-part hardener and the resin. Do not use any product that contains wax in its ingredients or you’ll end up with an extremely slick surface (which isn’t ideal).

Mixing the resin and hardener together: Mix equal parts of each component until there are no lumps visible and then apply as normal onto your project surfaces by brushing, rolling, or spraying.

How long do epoxy countertops last?

Epoxy countertops are very durable and long-lasting. They’re made from a polymer resin that can withstand hot and cold temperatures, scratches, stains, and other common household accidents (like dropping your favorite mug on it).

Epoxies are also waterproof, so they won’t warp or crack in the presence of moisture. This makes them ideal for use in bathrooms or kitchens where water is present.

Because epoxy is so durable, it’s easy to maintain: you can just wipe up any spills as they happen with a cloth or paper towel! You don’t have to worry about getting crumbs stuck in cracks because there aren’t any; if you do get some stuck in the seam between two pieces of plywood (which is inevitable), no problem—just use an old toothbrush to brush it out when the epoxy has cured completely.

How thick should epoxy countertop be?

The answer is different for every application! The thickness of your countertop depends on a few factors, including the type of epoxy you choose, the type of plywood and number of layers used, how many coats you apply in total, and how much sanding or finishing you do after applying.

As a general rule though: thicker is better! It’s usually recommended that you use at least 3/8″ – 1″ thickness without any kind of underlayment (ie: plywood). This will provide enough cushioning for food items like plates or cups.

While it’s not absolutely necessary to use an underlayment if there aren’t any soup spills planned, it will make your countertops stiffer which can help prevent warping over time as well as protect them from moisture damage caused by spills or condensation on hot days when windows are open during cooking activities indoors (or lack thereof).


Epoxy is a great option for countertops because it can be used on any material and will not cause damage to your home. It’s also easy to clean and comes in many different colors and finishes.

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Martin Flood

Martin Flood has been working in the construction industry for over 20 years as a general contractor with expertise in remodeling projects that are large or small. He has furthered his career by specializing in epoxy resin flooring, providing excellent service to both commercial and residential clients. Martin’s experience enables him to offer professional advice on how to choose the right type of project based on your needs and budget.

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