J-B Weld ExtremeHeat Putty is a robust and versatile solution for repairing metal surfaces that are subjected to high temperatures.

Capable of withstanding up to an impressive 1000F (538C), this metallic compound is perfect for patching and sealing cracks, holes, and leaks in exhaust systems, industrial furnaces, and other high-temperature applications. Once fully cured, the compound can be drilled, machined, or sanded, allowing you complete flexibility in crafting a precise and seamless repair. With a quick setting time of just 1 hour and a full cure achieved in 24 hours, it speeds up your repair process while ensuring durability. The putty dries to a machine grey colour, blending well with most metal surfaces. Available in an 85g size, J-B Weld ExtremeHeat Putty delivers reliable performance for all your metal repair needs.

• Size: 85g
• Withstands temperatures up to 538C
• Setting time: 1 hour
• Fully cures in 24 hours
• Dries to a machine grey finish
• Can be drilled, machined, and sanded
• Ideal for high-temperature metal repairs