Preparing Garage Floors For Epoxy Coating

preparing garage floor for epoxy

There are several aspects of preparing a garage floor for epoxy coating. Here are some important considerations: Efflorescence, Surface scrabbling, Grit blasting, Humidity, and more. After all of these factors are taken into consideration, the floor is ready for epoxy application. If you have any questions, please contact a professional. The following article will address these aspects in detail. Hopefully, it will be helpful to you!

Efflorescence on garage floor

There is a chance that your garage floor is prone to Efflorescence, a white powdery substance that appears in areas where the concrete is damp. If you notice this residue after cleaning the floor, it means that you are dealing with a moisture issue. The cause of damp concrete can be anything from leaky pipes to poor drainage. If you do notice any of these symptoms, it is time to get the concrete cleaned.

Surface scrabbling

There are two main methods of surface scrabbling to prepare a garage floor for epoxy. These methods are both effective at removing the top layer of the concrete slab. Scabbling removes a layer up to 1/4 inch thick, leaving the surface open-pored and ready to receive a fresh coat of epoxy. Grit blasting exposes these pores and helps the epoxy to form a strong mechanical bond.

Grit blasting

Before applying an epoxy coating, it is important to prepare the garage floor. A shot blasting or grit blasting procedure will remove loose particles and stains from the surface. This method is ideal for garage floors because of the ease of cleaning oil spills. Once the floor is prepared for the epoxy, it is then ready for the coating process. The floor will need to be thoroughly cleaned before it can be covered with an epoxy flake coating.


When preparing your garage floor for epoxy coating, you must take into account several factors to achieve the best results. The first consideration is the moisture level in the floor. While high humidity is not a major issue, excessive humidity can cause the epoxy coating to bubble or peel. To prevent this from happening, you should try to apply the coating in areas that do not experience moisture or excessive humidity. Make sure to place a plastic putty knife to smooth the floor surface.

Dew point

Ideally, a garage floor should be at a temperature below the dew point. However, changes in construction requirements or a quick-track building process can cause dewpoint problems. A thermometer or hygrometer with a dewpoint measurement feature can be used. If neither of these options is available, a combination hygrometer/thermometer/dewpoint measuring device can be used. The relative humidity at the jobsite should be at or below 60%. Having an air movement device can also help maintain a proper environment.


Before applying epoxy to your garage floor, you must first profile it. This process is done by removing all existing paint or sealer that has coated the concrete. Then, you need to clean and prep the entire floor with the proper tools and materials. If you don’t have the tools to perform this task yourself, you can hire a professional contractor to complete this task. Be sure to carefully follow the instructions and follow all safety precautions.

Using two people to apply epoxy

When preparing your floor to be covered in epoxy, there are three basic ways to prepare it. You can choose the most efficient way for your flooring, or you can hire someone to help you. Regardless of your method, however, make sure to prepare the floor properly to avoid future problems. For instance, if you have a concrete floor, you will want to make sure to clean it thoroughly. Before you apply the epoxy coating, remove any oil spots and clean the area thoroughly. You should also vacuum the floor.