Berkland Marine Adhesive Sealant 5200 Fast Cure (Black) is a marine-grade polyurethane sealant designed for permanent watertight bonding above and below the waterline. The black formulation blends with dark hulls, EPDM rubber, and finished trim where a white seam would be visible.

Fast-cure formula sets in approximately 24 hours and reaches full strength in 48 hours. Stays flexible after curing — won't crack under hull flex or thermal movement.

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

Applications: dark-hull boats, RV roof seams against black EPDM, automotive trim bonding, hardware bedding where black is preferred, gutter sealing.