A metallic epoxy is an epoxy coating with a metallic additive, creating exotic effects, lava flow, or pearlescent design. It is a two-part chemical mix made of an epoxy resin and a hardener. Though it starts out as a liquid, once it cures it becomes a truly durable solid that’s hard to crack. Epoxy floor coatings are great options for outdoor spaces because of its durability and ability to withstands the outdoor elements.