3M Marine Adhesive Sealant 5200 is a white, polyurethane adhesive specially designed for marine applications. It comes in a 5-gallon pail and has a full cure time of 3mm per 5 days. With a medium paste physical form, it can be applied by hand or pressure caulk. This adhesive has an impressive tensile strength of 700 psi and a hardness of 68 Shore A. It is tack-free within 48 hours and has a solids weight percent of approximately 97%.