J-B Weld MarineWeld Marine Epoxy

J-B Weld MarineWeld Marine Epoxy is a professional-grade, two-part epoxy system engineered to deliver powerful, waterproof bonding in marine and underwater environments. Designed for repairing boats, docks, water tanks, and marine equipment, it forms a permanent, high-strength bond that resists water, salt, and extreme conditions. The easy-to-use formula sets in 4–6 hours and cures in 15–24 hours to create a solid, steel-reinforced joint with a tensile strength of up to 5020 PSI. Once cured, it can be drilled, sanded, machined, or painted for seamless repairs. Perfect for bonding fiberglass, metal, plastic, and wood, J-B Weld MarineWeld is ideal for sealing hull cracks, fixing propellers, or patching fuel tanks. Its waterproof, chemical-resistant finish ensures lasting protection even in constant water exposure. Trusted by boat owners and repair professionals worldwide, MarineWeld provides reliable, heavy-duty performance for all marine repair applications where strength and durability matter most.