3M Marine (Fast) Adhesive Sealant 5200 - White - Permanent 3 - Ounce.

3M Marine (Fast) Adhesive Sealant 5200 - White - Permanent 3 - Ounce.

The seal is extremely strong, retains its strength above or below the water line. Stays flexible too - allows for structural movement. Has excellent resistance to weathering and salt water. Becomes tack free in one hour and fully cures in approximately 24 hours.