J-B MarineWeldâ„¢ is a specially formulated two-part epoxy cold weld system that provides for strong, lasting repairs for bonding different or similar surfaces, such as aluminum, metal, composites, fiberglass and others. MarineWeldâ„¢ sets in 4 to 6 hrs at room temperature and is fully cured to a dark grey color in 15 to 24 hrs. Once cured, it can be shaped, tapped, filed, sanded and drilled and will retain its strength above or below the waters' surface. MarineWeldâ„¢ has a 1:1 mixing ratio and tensile strength of 3960 psi.
