Epoxy is a term that's come to represent a class of materials and the act of using those materials. Epoxy "systems" are based on a combination of resins and hardeners. When mixed together, the resin and hardener chemically react to form a rigid plastic material. The final material is strong, durable, resistant, and bonds extremely well to most base layers. Epoxy floors are so strong that they're often used in heavy traffic areas such as industrial environments, hospitals, or sports facilities.