The 3M Urethane Seam Sealer is ideal for sealing the exterior and interior RV and automotive joints and seams. Rust begins at the seams, and a badly applied sealant could lift up and let water enter using capillary action. Rust ruins seams and can result in the need to replace the entire panel. Applying a good sealant is important as even a tiny gap could lead to rot.
The 3M Urethane Seam Sealers have no odor, are moisture-curing, non-cracking and non-shrinking.
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.