3M Marine Adhesive Sealant Fast-Cure 5200 is a professional-grade, multi-surface sealant designed for marine applications. It bonds wood, fiberglass, and metal substrates below and above water, creating a waterproof and flexible bond. The fast-curing formula is tack-free within 1 hour and fully cured in 48 hours, making it ideal for temporary fixes in harsh marine environments.
  Crafted by 3M, this marine adhesive is a trusted choice for boats, RVs, and vessels. Its durable polyurethane polymer absorbs stress from vibration, swelling, and shock, providing a reliable bond for years. Whether you're sealing hull fittings, portholes, or fiberglass transoms, this sealant ensures your marine project stays dry and secure.