Many people wonder which materials are suitable for epoxy application. The answer is simple: epoxy works well on a wide variety of surfaces, but some require special preparation. Below, we’ll walk you through which surfaces are ready for epoxy, those that need prep work, and the few materials that won’t bond well with epoxy.
Surfaces Ideal for Epoxy Application
You can apply epoxy directly onto the following surfaces without any extra prep:
- MDF board
- Formica
- Laminate
- Tile*
- Ceramic
- Porcelain
- Glass
- Metal
Pro Tip: Make sure that the surface is free from dust, oils, or debris for the best results. For slick surfaces, lightly sand to create some texture, but be cautious not to expose porous layers. *When working with tile, remember that while the tile itself is non-porous, grout lines need attention. We recommend using a non-sag epoxy to fill and level grout lines before pouring your flood coat.
Preparing Porous Surfaces for Epoxy
When it comes to porous surfaces like wood or concrete, preparation is essential for long-lasting results:
- Wood (including plywood, butcher block, live-edge pieces)
- Concrete
Pro Tip: Porous surfaces tend to absorb epoxy, so applying a skim coat will seal the surface and prevent bubbles from forming in your final pour. A thin skim coat should leave the surface looking wet, and bubbles will naturally rise and escape. For every square foot, plan to use around 1-2 ounces of epoxy for the skim coat.
Recoating Epoxy
Need to add another layer of epoxy? If your previous coat has cured for more than 12 hours, lightly sand the surface to ensure proper adhesion. This gentle sanding will help the new epoxy layer bond without any issues.
Surfaces That Don’t Bond with Epoxy
While epoxy is versatile, it won’t adhere to all surfaces. Avoid using epoxy on:
- Copper
- Silicone
Make sure to avoid these materials when planning your project to ensure the best results!
Need Help?
If you have more questions about how to prep your surface for epoxy, feel free to reach out to us at info@countertopepoxy.com. We’re here to help guide you through every step of the process!