Often times we don’t think about our garages or pay much attention for their appearance. They’re simply a destination for a park the cars and store the extra boxes of Christmas decorations and such. However, like any other room within your house your garage floor needs to be used care of. 
Because of the utilize it gets, along with water, gas and oil that’ll inevitable be spilled upon it, garage flooring can very quickly become damaged and begin to break apart after a few years of use. Epoxy coating is one solution to your garage flooring challenge. Epoxy coating applies a level of sealant and protectant to your concrete garage floor to simply help it resist staining, moisture problems and helps it maintain its appearance.
Installing epoxy flooring requires a little up-front preparation before beginning. The most crucial step in the act is ensuring the ground you are going to apply the epoxy coating onto is without any moisture, residual paint and does not have a concrete sealer and other finishing put on it.

To test for moisture, have a sheet of plastic and take it to a 3-foot x 3-foot area using masking tape. Keep it there for about two days and then remove and check for just about any moisture collecting on the side of the plastic facing the floor. If moisture occurs, than an epoxy flooring coating isn’t suitable as epoxy needs a dry surface to properly bond with the flooring. 
Next, we’ll test to make sure the flooring does not have a sealant already put on it. This test will even check for the clear presence of oils in the cement as well. Take a cup of water and pour it directly onto the prevailing flooring. It will soak into the ground in a fair quantity of time. When it beads or just sits on the top of flooring then your flooring has probably recently been sealed or contains oil contaminants. Epoxy flooring isn’t suitable for cement floors that have recently been sealed or contain almost any oil residue because it will not bond. 
Finally, if you are willing to invest several months testing a location of one’s garage floor for suitability to installing epoxy flooring you can paint a tiny area with regular, oil-based enamel. If this test area lasts for several months then it is likely an epoxy coating lasts as well. However, if you decide to proceed with applying the epoxy coating you will have to remove this enamel coating which will require sanding.