WHT Poly Marine Sealant

3M Marine adhesive/sealant fast cure 5200 is a fast curing, one-part polyurethane that chemically reacts with moisture to deliver strong, flexible bonds with excellent adhesion to wood and fiberglass. Forms water-tight, weather-resistant seals on joints and boat hardware, above and below the waterline. In addition, its flexibility allows for dissipation of stress caused by shock, vibration, swelling or shrinking.