Rust should not be coming to the surface unless Rust Bullet was improperly applied. Wipe down the coated surface with Rust Bullet Solvent and inspect the surface to rule out the possibility that the rust stains are caused by rusty water or fluid that has dripped onto the surface coated with Rust Bullet from another area that was not coated. If another application of Rust Bullet is necessary due to an inadequate initial application, scuff up the surface with 80-100 grit sandpaper and apply an additional two coats of the Rust Bullet coating. Remember, surfaces to be coated must be completely dry.