3M 14316 Marine Adhesive Sealant 4000 UV Black 10 oz Cartridge

3M Marine Adhesive Sealant 4000 UV is a professional-grade, medium-strength polyurethane sealant designed specifically for marine applications. This fast-curing formula creates a durable, flexible bond that withstands constant exposure to sun, saltwater, and harsh marine environments while still allowing for future disassembly when needed.

Key Features:

• UV-resistant formula maintains color integrity above and below the waterline
• Medium-strength bond allows for disassembly without destroying bonded surfaces
• Fast cure time accelerates project completion
• Elastomeric properties accommodate joint movement and thermal expansion
• Can be painted immediately with water-based paints after application
• Excellent adhesion to fiberglass, wood, metal, and gelcoat
• 10 oz (295 ml) cartridge fits standard caulking guns

Ideal for sealing hatches, ports, windows, deck hardware, and through-hull fittings. The medium-strength formulation provides a secure seal that can be removed for maintenance or repairs without damaging substrates. Black color provides a professional appearance and hides well against dark surfaces.