3:1 high building epoxy cures to a hard, tough, durable finish, providing stain, chemical and abrasion resistance for protection of concrete, plaster and fiberglass swimming pools, spas and slides. This product cures to a satin finish with excellent coverage rates, especially on previously painted epoxy surfaces. Because of their chemical cure, epoxies are the paints of choice for indoor and outdoor pools. HB31 rolls or sprays easily up to 8 mils dry per coat.