The 3M 5200 White Marine Adhesive Sealant is a high-performance, moisture-curing polyurethane designed to form a strong, permanent bond in harsh marine environments. Ideal for above and below the waterline applications, this versatile adhesive/sealant provides superior flexibility and a long-lasting waterproof seal on fiberglass, wood, metal, and most plastics. It cures to a tough, resilient bond that resists saltwater, weathering, vibration, and structural stress.
Easy to apply with a standard caulking gun, 3M 5200 is trusted by boat builders and repair professionals for its unmatched strength and reliability. Whether you’re sealing hull seams, installing hardware, or bonding decks, this white marine adhesive/sealant delivers professional-grade performance for demanding marine applications.