J-B Weld, Marine, 1 oz Resin and Hardener, Formulated Like Industrial-Strength J-B Weld Cold-Weld, Cures As Strong As Steel & Is Water & Weatherproof, Impervious To Saltwater, Chemicals, Oil, Acids, & Other Corrosive Materials, Tolerates Extreme Temperature Fluctuations, For Quick & Permanent Repairs From Surf Board Nicks To Hull Repairs.