Sealant, 4200 Polyurethane FastCur Black 10oz Cartridge

4200 Fast Cure is a one-part general purpose Polyurethane sealant with good adhesion to wood, fiberglass, gelcoat, plastics and metals. Forms watertight, weather-resistant seals on joints and boat hardware above or below the waterline. 3M 4200 fast cure is ideal for hardware and bedding applications. Approx. half the strength of 3M Marine Adhesive/Sealant 5200, 3M 4200 is non-permanent. 4200 is sandable and paintable.