No. After curing, all Rust Bullet coatings have a service temperature range of 314°F (157°C) continuous and can tolerate maximum temperatures between 617°F (325°C) and 662°F (350°C) for up to 72-hour periods. Rust Bullet provides excellent protection for most engine components; however, is not recommended for coating exhaust systems due to the excessive heat produced on headers, exhaust manifolds, catalytic converter, or exhaust pipes.