Berkland Marine Adhesive Sealant 4000/4200 Fast Cure (White) is a marine-grade polyurethane sealant designed for semi-permanent flexible bonding above and below the waterline. Unlike permanent sealants, the 4000/4200 formulation allows for repairs and component removal when needed — ideal for fittings and hardware that may require future service.

Fast-cure formula sets in approximately 24 hours and reaches full strength in 48 hours. UV-resistant and flexible.

Bonds wood, fiberglass, aluminum, and most marine substrates. Available in white. Made in the USA.

Applications: removable hardware bedding, deck fittings, hatches, ports, gutters, semi-permanent automotive trim.