J-B Weld HighHeat is a heat-resistant epoxy adhesive for bonding and gap filling substrates exposed to high temperatures up to 260C (500F) Resistant to water, chemicals and heat. Perfect for repairing vehicle exhausts, rust damage and other high heat automotive parts. It can be used onaluminium, brass, copper, iron and stainless steel. Specifications: Bonding Strength: 4, 730 PSI.Set Time: 1 Hour.Cure Time: 24 Hours (room temp) or 1 Hour (with heat) .Colour When Dry: Dark Grey.Size: 25ml.