J-B Weld TankWeld is a hand-mixable, steel-reinforced, two-part, non-rusting epoxy putty that quickly repairs or rebuilds anything made of metal. Forms an extremely strong bond to metal surfaces. After mixing, it forms an industrial-strength polymer compound that can be moulded into shapes or used to build up, patch and repair steel components. TankWeld sets in 5 minutes and after 60 minutes, can be drilled, tapped, machined, ground, filed and painted. TankWeld cures to a dark grey colour, is rated at a tensile strength of 4000 PSI and will withstand temperatures up to 150 Celsius. Fuel, oil, water, hydraulic fluid and chemical resistant.