JB MarineWeld is a specially formulated two part Cold Weld adhesive system that provides strong, lasting repairs for bonding different or similar surfaces, such as metal, composites, fibreglass and others. MarineWeld sets in 20 minutes at room temperature. At full cure, it is white in colour. It may then be shaped, tapped, filed, sanded and drilled, retaining full strength above or below the waters surface. MarineWeld has a 1:1 mixing ratio and tensile strength of 3200 PSI.