If the concrete epoxy coating dries properly, it can show resistance to heat also, to some extent. The heat limit of standard epoxy material is 200 degrees Fahrenheit. The phosphorus-containing epoxies can withstand better heat than the one without the coating. Of course, it will be the ideal feature for storing the cars in the garage. However, when you apply epoxy coating to your floor surfaces, you need to be careful about no kind of chemical or heat reaction with the subfloors.