3M Marine Adhesive Sealant 5200 White 3oz Polyurethane Waterproof Boat

3M™ Marine Adhesive Sealant 5200 / White - 3 oz. (MMM05203)

3M™ Marine Adhesive Sealant 5200 is a single-component, high-strength polyurethane designed for permanent bonding in marine environments. It cures with moisture to form a durable, flexible, and waterproof seal, making it ideal for bonding wood, gelcoat, and fiberglass. This sealant is suitable for use both above and below the waterline, providing long-lasting protection and flexibility to accommodate structural movement, vibration, swelling, shrinking, or shock.

• Permanent waterproof bonding above and below the waterline
• High-strength, gap-filling polyurethane formula
• Flexible to absorb movement and stress
• Ideal for wood, gelcoat, and fiberglass
• Single-component, moisture-curing application

Suggested Applications:

• Fiberglass deck to hull bonding
• Through-hull fittings
• Wood to fiberglass joints
• Portholes and deck fittings

Safety data sheet SDS