3M 5200 FAST CURE Marine Adhesive Sealant (#6500). This high strength polyurethane adhesive can be used above or below the waterline. This comes in a 10oz caulk tube which fits most standard caulking guns. This adhesive becomes tack free in one hour and fully cures in approx 24hrs. Adhesive is extremely strong and stays flexible to allow for structural movement. Excellent resistance to weathering and salt water.
3M 5200 Marine Adhesive SDS
3M 5200 Marine Adhesive TDS