5200Fc Fast Cure Sealant White Cart 3M 5200 Fast Cure forms an extremely strong seal which retains its strength above or below the water line. Stays flexible, allowing for some structural movement. Has excellent resistance to weathering and salt water. Stress caused by shock, vibration, swelling or shrinking is effectively absorbed. This is a faster curing version of 3M Marine AdhesiveSealant 5200. Ideal for thru hull fastening, deck fittings, railings, and transducers. Best used when no removal is anticipated. Use above or below the waterline Fast cure rate tack free in 60 minutes Very high strength structural bonding and sealing of wood, fiberglass, gelcoat, primed metal