Highlights * POWERFUL MARINE SEALANT: A permanent solution for bonding marine substrates like wood, fiberglass, and metal * VERSATILE APPLICATIONS: Tough yet flexible polyurethane polymer is ideal for deck housings, hull fittings, porthole mounting, fiberglass transoms, and underside molding * WARD OFF WATER: Resists saltwater and weathering both above and below the water line * FLEXIBLE BONDS: Its elastomeric bond absorbs the stress of vibration, swelling, shrinking, and shock * LONG WORKING TIME: Allows plenty of working time, achieving handling strength in 48 hours 3M(TM) Marine Adhesive Sealant 5200 is a one-component, high-strength, moisture-curing, gap-filling polyurethane for permanent bonding of wood, gelcoat and fiberglass.