Loading... Please wait...3M 5200 Fast Cure has almost the same tensile strength with a much more rapid cure time. 5200 Fast Cure is a faster curing version of 3M Marine 5200 Adhesive Sealant. Use where a permanent seal is needed quickly. The high performance polyurethane becomes tack free in one hour and fully cures in approximately 24 hours. The seal is extremely strong, retains its strength above or below the water line. Stays flexible and allows for structural movement. Has excellent resistance to weathering and salt water.