Sandable and paintable, FlexSet resists vibration and bending failures by curing to a tough, flexible consistency that creates an air and watertight seal between mating surfaces. Bonds to Polyethylene Starboard and Marine Lumber, PVC, Hypalon, ceramic, rubber, polyurethane, glass, acrylic, steel, fiberglass, polycarbonate, wood, ABS, aluminum, Lexan and dissimilar materials. Apply above or below the waterline, in wet or dry areas.