3M 05206 Marine Adhesive/Sealant 5200, White / 1 oz. 3M Marine Adhesive Sealant 5200 is extremely strong, retains its strength above or below water line Stays flexible Allows for structural movement Has excellent resistance to weathering and salt water High performance polyurethane adhesive/sealant becomes tack-free in 48 hours, cures completely in 5-7 days Strong seal retains strength above or below the water line Excellent resistence to weathering and saltwater Marine, general industrial Bonding, attaching and assembling