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.

Forms watertight, weather-resistant seals on joints and boat hardware above or below the waterline. This product is approximately half the strength of 3M Marine Adhesive Sealant 5200, which allows for disassembly of parts.

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

Product Specs:

• Tack-free: 90 min
• Tensile strength: 300 psi
• Shore A hardness: 40
• Elongation: 750%
• Overlap shear strength for gelcoat (70F): 244 psi
• Fast cure formula
• Allows for disassembly
• Non-sagging
• Do not use in high temperature applications (>190F)
• Not recommended for the installation of glass, polycarbonate or acrylic windows unless they are also mechanically fastened
• Should be used within 24 hours after inner seal is punctured
• Sandable, paintable – but test first for compatibility; sealant is more flexible than most paints, do not paint in high elongation applications
• 3M Marine 06564
• Color: Black
• 10 oz Cartridge