How to Prepare Your Garage for Epoxy Flooring

This guide provides an overview of Epoxy Flooring application process in more detail.
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Epoxy Flooring is the hot new trend because they’re incredibly stunning, extremely durable, and highly cost-efficient.

But it’s most likely that you’re already decided on having it on your garage floor so you’re here to find out how. It’s simpler than you think. Installing epoxy flooring is really easy but you need to prepare your garage for the installation.

Here is how to prepare for Garage Epoxy Flooring:

Inspect Your Garage Floor

epoxy flooring

First, you need to inspect your floor. Epoxy coating is best applied to concrete that is clean and dry. There should also be no cracking or damages. Cracks and small holes will ruin the design and make the coating less durable. You can patch them up with concrete patch products beforehand.

Take note that epoxy will not adhere to sealed concrete so make sure that your floor is not a sealed concrete before applying any epoxy coating. If it is, you need to remove the sealer by mechanical means like grinding.

You can test if your floor has sealers by sprinkling water on the surface. If you see the water bead up immediately and the surface does not get darker, that means your concrete is sealed and you need to remove it. If the water is absorbed and turns the floor dark, there is no sealer.

If your floor is a newly poured concrete, wait and let it cure for at least thirty days before applying epoxy coating for your epoxy garage flooring.

Check for Moisture

Moisture on your garage floor will cause the epoxy floor coating to fail. If your concrete has too much moisture, it is not suitable for epoxy coating. To test for moisture before making your garage epoxy flooring, you need to look for damp areas.

Damp concrete of efflorescence is a white powdery substance. You will see it on the surface when moisture rises up beneath the slab and reacts to the excess lime and salts on the flooring. The white residue forms when the moisture evaporates from the concrete. If you see this, that means there is moisture on your concrete.

If you live in a humid area, efflorescence can also form when the concrete collects moisture due to condensation. You need to conduct a calcium chloride test if you see visible signs of moisture before you can be sure that you can apply epoxy coating to your floor.

Clean Up

Another important preparation for your garage epoxy flooring is actually cleaning your garage floor. Once you are sure that there is no moisture and your floor can accept epoxy coating, you can now clean its surface. It should be free from any oils or grease.

If there are areas with oil or grease stains on the floor, they will act like a sealer and repel the water so the epoxy will not adhere properly to the concrete. To remove grease, you can use a degreaser with a stiff brush then let the floor dry.

Sweep the floor with a broom and use a wet-dry vacuum to thoroughly clean the floor of any debris.

Profile Your Garage Floor

Once you’ve cleaned your garage floor and are sure that it can accept the epoxy coating, you need to profile it. This process involves exposing the pores in the concrete’s surface so that the epoxy will flow in and create a good bond. This is the most important preparation for your garage epoxy flooring.

You can do this by doing either acid etch or grinding the surface to make it achieve the proper floor profile. Most professionals prefer grinding the floor but doing a proper acid etch is sufficient for most applications.

Vacuum the entire floor after this and make sure that there aren’t any white residues after. You will know that you need to vacuum some more if there is still some dust.

Give your garage floor enough time to dry if you have chosen the acid etch method for your garage epoxy flooring.

Complete Any Repairs

Finally, once you have cleaned, tested, and profiled your garage floor, you need to make the necessary repairs where they are needed. Check for any damages and make sure to repair them before proceeding with the installation.

Don’t use latex crack repair products because they are too soft compared to the concrete and epoxy. They will shrink as they age and that will make the epoxy floor depress underneath the coating. Your garage epoxy flooring may also crack under pressure.

If you need to fill in contraction joints on your floor, do it first before applying the coating. Make sure that the surface of the areas that you repair are flat and smooth.

Prepare the Room

Before applying the coating, use a wide painter’s tape to cover the bottoms of your garage walls for your garage epoxy flooring. You can also tape some plastic sheeting on the bottom foot.

Mixing the Epoxy

Most epoxy mixtures contain two parts. One is a catalyst or hardener and the other is resin. These two must be mixed well together before they are applied. Stir the paint lightly and gently pour the hardener or catalyst as you continue to stir.

Once you have used up all of the hardener, stir the mixture for about another minute or two until they are thoroughly combined. Let it rest and follow the instructions for the amount of time it needs before application. Also, make sure that the temperature is between 70 and 80 degrees before you start.


Follow the above preparations and you are sure to have a fail-proof garage epoxy flooring installation. Make sure to apply the epoxy mixture as soon as it is ready.

Properly preparing your garage for epoxy flooring is very important to ensure that you will end up with the beautiful and durable design that epoxy flooring is intended to be. Failing to prepare your garage will defeat the purpose of applying epoxy flooring because it will not last.


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Installing Epoxy Flooring is really easy but you need to prepare your Garage for the installation.