3M Marine Sealant 4200 3 oz - White
Forms watertight, weather-resistant seals on joints and boat hardware above or below the waterline. Paintable and sand-able. This product is approx. half the strength of 3M™ Marine Adhesive/Sealant 5200, which allows for disassembly of parts. A one-part general purpose polyurethane that chemically reacts with moisture to deliver flexible bonds with good adhesion to wood, fiberglass, gelcoat, certain plastics and metals.