3M 4200 Fast Cure White Polyurethane Adhesive / Sealant 3oz. Cures fast and forms a watertight seal between joints and hardware. One-part, all-purpose sealant chemically reacts with moisture and forms flexible, watertight, weather-resistant seals on joints and hardware. Can be used above or below the waterline; approximately half the strength of 3M's 5200, which allows for eventual disassembly of parts. Note: Can be softened by some teak cleaners and sealers and is not recommended for sealing teak decks. Specifications Formulation: One-part fast-cure polyurethane adhesive/sealant Recommended Usage: Fiberglass, wood, metal, some plastics, above or below water Material Incompatibilities: Acrylics ABS, Lexan Cure Time: Tack free: 2 hrs; complete cure: 24 hrs Cleanup: Mineral spirits or kerosene Removal: Mechanical removal Tensile Strength: 300psi