The 3M Fast Cure 4200 White 3oz Tube is a one-part general all-purpose polyurethane that chemically reacts with moisture to deliver flexible bonds with good adhesion to wood, fiberglass, gelcoat, plastics and metals. Paintable and sandable. Forms watertight, weather-resistant seals on joints and boat hardware above or below the waterline.

Note: When very high strength or unremovable bonds are required, use 3M Marine Adhesive/Sealant 5200 or Fast Cure 5200. Not recommended for sealing wood decks because it may be permanently softened by certain teak cleaners or sealers. On plastics, test 3M Fast Cure 4200 to determine suitability.