Epoxy and polyurethane are two different types of coatings. Both epoxy and polyurethane are used primarily as coatings of concrete floors, and the best type of coating for individual floors can be determined after the floor has been evaluated.
Both epoxy and polyurethane are thermosetting polymers. Epoxy is best used on a hard, thick surface, and one that is resistant to impact is best. While polyurethane is similar, it is used often as a coating for garage floors. When deciding what type of epoxy or polyurethane to use, it is best to pick a solution that is 100 percent solids, although 60 to 70 percent is acceptable. A flooring specialist can best determine which polymer performs best on individual flooring.