3M? MARINE ADHESIVE/SEALANT NO. 5200

High performance polyurethane adhesive/sealant becomes tack free in 48 hours, completely cures in 5 to 7 days with no shrinkage. Seal is extremely strong, retains strength above or below water line. Maintains flexibility allowing for structural movement and stress caused by shock, vibration, swelling or shrinking. Excellent resistance to weathering and salt water. Bonds to nearly any materials, easily applied with caulking gun. Remains workable with trowel or spatula up to 4 hours after application. Won't sag or flow in vertical or horizontal seams.