Isospartic 640 is an 85% solids; ZERO VOC; aliphatic polyaspartic coating. Can be used as a pigmented topcoat or as a clear coat over quartz or chip flooring systems. This seamless system is stain resistant and exhibits extraordinary performance characteristics when applied over rigid substrates. It has excellent color and gloss stability; even under harsh UV exposure. This coating creates an extremely tough; chemical and abrasion resistant finish.