Epoxy is one of the most common coatings for concrete floors and is notable for its strength and durability. It is a two-part chemical system consisting of a resin and hardener that, when combined chemically, forms a rigid plastic-like material that adheres to the concrete. Epoxy concrete coatings come in all different types and have a variety of intended applications. The drawback of epoxy is it is less UV stable than poly based coatings and so it is not the ideal topcoat in most applications.
Polyurea is a coating that was originally developed for spray applications like bed liners and industrial metal applications. More recently it has been developed for concrete coating application since it can be used as a primer coat and dry in about an hour. This fast dry time allows for one day installation of garage floor coatings. The drawback of polyurea is it generally lacks the ability to withstand any moisture vapor pressure which can cause the coating to delaminate from the concrete.
Polyaspartic is a highly durable and UV resistant coating used for most final clear coats on garage floor coatings. These coatings offer easy cleanability, oil and stain resistance, and dry fast enough to typically offer 24 hour return to service at around 70 degrees fahrenheit.
Polyurethane is also widely used due to its excellent abrasion resistance, chemical resistance properties, and superior color retention capabilities.
Porch and floor enamel may be used for decorative purposes but offers less protection than other coating options.
Depending on your needs, each type of coating has different benefits, so it’s important to select the best product for your specific application.