J-B Weld HighHeat Epoxy Putty is specifically formulated to bond and repair materials exposed to high temperatures in automotive and industrial maintenance applications. It cures to a tough, hard bond with little to no shrinkage. This industrial-strength product outperforms conventional epoxy putties at high temperatures, and sets in 1 hour at room temperature. After 8 hours, it can be drilled, tapped, machined, ground, filed and painted. Offers exceptionally high strength in continuous 232C (450F) and up to 260C (500F) intermittent. Resistant to water, chemicals and heat. Specifications: Bonding Strength: 800 PSI (600 PSI at 400F).Temperature Resistant: up to 232C (450F) or 260C (500F).Set Time: 1 Hour.Cure Time: 8 Hours.Colour When Dry: Machine Grey.Size: 57g.