Does epoxy stick to concrete?

Epoxy is a plastic material that is used for industrial applications and is also used in some places in the home. Epoxy can stick to concrete, and it is often used on concrete floors. Epoxy can also be used as an adhesive or coating.

There are types of epoxy resins that are good adhesives, while others are good as coatings and may not adhere as well as an adhesive resin. These differences between epoxies result from the differences in the polymers that make up the resin portion of the epoxy system.

Does epoxy stick to concrete?

In general, epoxy will adhere to concrete. But the answer isn’t that simple. If you just paint epoxy onto concrete, it will likely not stick correctly and the coating will soon fail.

You must prepare your concrete before applying epoxy. Epoxy adheres best to concrete that is porous and clean.

You must first prepare your surface by cleaning it thoroughly with a degreaser or pressure washer and then apply an etching solution to make the surface more porous.

Once you have prepared your surface, you can then apply your epoxy!

Can you put epoxy over concrete?

Yes, you can put epoxy over concrete. In fact, many experts recommend it. Epoxy coatings are ideal for concrete floors because they stick well and last a long time.

The coating will not peel off easily and resists stains, moisture, and damage from chemicals. Additionally, epoxy floor coatings are resistant to mold and mildew.

Epoxies commonly come in two parts that you mix together before prepping the surface of the floor for application. Concrete must be clean and free of dirt, grease, or any other contaminants to ensure proper adhesion to the substrate (the epoxy does not bond properly to dirt).

After you apply an initial thin coat of epoxy with a paintbrush or roller on the edges and corners of your floor, use a squeegee to spread a very thin layer over your entire garage floor.

Use a broom handle attached to the back of your squeegee as an extension arm so you don’t have to bend over while spreading the material.

Do not pour any excess material on top of your first coat; it will pool up in one area and make it difficult for your second coat to adhere evenly on top of it. Allow this first “tack” layer (also called the prime coat) to dry overnight before applying another thin layer on top

How do you apply epoxy to concrete?

Epoxy is a versatile substance, and it makes for a perfect sealant for concrete. But before you can put epoxy into concrete, you’ll have to get it on the correct surface. Follow these steps to apply epoxy:

  • Clean the concrete thoroughly with soap and water.
  • Allow the concrete surface to dry completely by letting it sit outdoors or in an unheated garage. Cured concrete is much harder and not as flexible, but the increased strength will ensure that your epoxy will hold up better over time.
  • Take out all sharp objects from your workspace—the hardened epoxy can be brittle, so do not use metal tools like metal shears!
  • Spread the epoxy onto the surface of your choice with a paintbrush or roller; it’s easiest to apply in straight lines and near joints where two surfaces come together. Let the first coat cure for about 20 minutes before applying another coat if you need more than one coating for a particular application. Do not let any air bubbles form under each layer of epoxy! If this happens, use a utility knife or scraper tool to remove them without damaging the workpiece beneath them. Do not use screwdrivers or pointed equipment at this time; they could puncture through your workpiece while still stuck in place after initial curing has taken place!

Note that there are different kinds of hardeners available on store shelves—some allow you to apply an even finer layer of protection after final curing has taken place; these are often more expensive than hardeners that do not offer this option but require extra care when implementing them (for example scrapers)

Do I need to seal concrete before epoxy?

You may be wondering whether you need to seal the concrete before applying epoxy. The answer is yes! The purpose of sealing your concrete floor prior to applying epoxy is to prevent moisture from evaporating up through the concrete, which will cause bubbles and blisters in your epoxy.

Depending on the condition of your floor, it may need one or more coats of sealer. If this sounds intimidating, don’t worry! We have an article that explains how to prepare your garage floor for epoxy in even more detail.

If you’re thinking “Okay, but what if I have a new garage floor? Do I still need to seal it?” My response would be yes, definitely.

Even if you just had your concrete poured yesterday (which actually happened with my own garage!), there are still impurities in the surface that need to be neutralized and sealed before applying an epoxy coating.

Garage floors are usually very porous and rough, so they require proper preparation in order for the adhesive properties of epoxy resins to work optimally. Sealing your garage floor will ensure smooth and uniform coverage for years to come.

Will epoxy stick to concrete floor?

Epoxy does not stick to concrete. Concrete is a porous material, and epoxy needs a smooth surface that isn’t porous for it to stick to.

You can put epoxy on top of a concrete floor if you first seal the surface with a concrete sealant. Alternatively, you can put down a layer of plywood or another type of wood subflooring before applying an epoxy coating to your floors.

Because it is a resin-based product, epoxy will easily bind with wood surfaces. Learn more about how well epoxy sticks to concrete in this article.

What are the disadvantages of epoxy?

  • Epoxy can be messy to work with.
  • It is toxic, so you need to wear protective gear such as a mask and gloves.
  • You have to follow the instructions; otherwise, it can be dangerous.
  • Epoxy can be tough to remove or impossible if you don’t use a concrete grinding or scarifying machine for removal. (For any stain that has penetrated deep into the concrete surface. It is recommended that you use coarse diamond blades for grinding.) If you are looking for an alternative method to remove these stains from the concrete surfaces, then pressure washing might just do the trick!
  • In case, epoxy flooring gets damaged for one reason or another then repairing these floors becomes difficult as well unless it’s done professionally by someone who knows what they are doing!

Can you epoxy a concrete patio?

The short answer is no. Epoxy is not meant for use on concrete patios. It takes a lot of work to prepare the surface and install and it will chip, peel, and flake off over time. In addition, if you ever need to replace the epoxy (which you probably will) it’s a huge mess.

We recommend using concrete stain instead. It’s much easier to apply than epoxy and looks just as good, if not better.

Is epoxy flooring cheaper than tile?

Keep in mind that tiles are usually less expensive than epoxy. They are also much easier to install and repair if something does happen.

However, epoxy floors still have many advantages over tiles including seamless installation, superior durability, moisture-proofing as well as easier maintenance.


In conclusion, epoxy is a two-part polymeric resin that can be used to coat concrete surfaces. Epoxy creates a durable bond between the concrete and other materials, allowing for more flexibility in the use of your concrete surface.

Epoxy is available in a variety of colors and textures, so you can make your concrete look any way you want it to. Despite its strength, it is surprisingly easy to apply.

If you want to protect your floors or furniture from stains and moisture, epoxy is an excellent choice for many different home projects.

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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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