J-B Weld MarineWeld™ is a specially formulated two-part Cold-Weld™ adhesive system which provides strong, lasting repairs for bonding different or similar surfaces, such as metal, composites, fibreglass, and others.
Sets in 4-6 hours at room temperature and is fully cured to a dark grey color in 15-24 hours. Once cured, it can be shaped, tapped, filed, sanded and drilled and will retain its strength above or below the waters’ surface. It's also resistant to petroleum, chemical and acid.