3M 06504 Marine Adhesive Sealant 5200 Black 10oz Cartridge

3M Marine Adhesive Sealant 5200 is a premium-grade, one-component polyurethane sealant designed for permanent bonding applications in marine environments. This professional-strength formula creates a flexible, watertight seal that withstands the harsh conditions of saltwater exposure, UV rays, and extreme temperature fluctuations.

Key Features:

• Permanent bonding strength for wood, fiberglass, and gelcoat surfaces
• High tensile strength of 600 PSI for superior holding power
• Wide operating temperature range from -40°F to +190°F
• 48-hour tack-free cure time for reliable, long-lasting bonds
• Single-component formula - no mixing required
• Black color blends seamlessly with dark marine hardware and surfaces
• 10-ounce cartridge fits standard caulking guns for easy application

Ideal for above and below waterline applications including deck hardware installation, hull-to-deck joints, keel and rudder bonding, through-hull fittings, and fiberglass repair. The flexible cured sealant maintains adhesion through hull flexing and thermal expansion, making it the preferred choice of boat builders and marine professionals worldwide.