Pyro-Putty 2400, a high temperature sealer and metal repair compound developed by AremcoProducts, Inc., is now used to repair cast iron, steel and stainless steel exhaust headers used inautomotive, truck, marine, and industrial applications to 2000°F (1093°C).

Pyro-Putty 2400 is a ceramic and stainless steel filled, high temperature, thermally conductivepaste used to bond, seal and repair defects up to 3/8" in cross-section in cast iron, steel and stainlesssteel components and structures up to 2000°F (1093°C).Pyro-Putty 2400 is a single part, thermally shock resistant paste that will not decompose at hightemperatures. It is a water-based material that contains no volatile organic compounds. It sets at room temperature and cures in-situ or by heating to 200 °F for 2-4 hours. It can be machined andpainted after curing.Pyro-Putty 2400 can be used to effect seals and repairs in exhaust manifolds, headers, mufflers,catalytic converters in engine applications as well as commercial and industrial high temperaturesystems such as turbines, incinerators, boilers, ovens, and furnaces.