A Rust Bullet topcoat should be applied within the standard recoat times of two to six hours. If 12 or more hours have lapsed, wait for Rust Bullet to harden for at least 24 hours then lightly scuff with 80-100 grit sandpaper; enough to break the glaze to create a surface profile.
If a spray application of Rust Bullet has been accelerated by adding Rust Bullet Rapid Fire Accelerator, a topcoat may be applied approximately one hour after the final coat of the accelerated Rust Bullet coating has been applied.
If using a premium finishing paint or any other topcoat other than Rust Bullet, it is recommended to refer to the manufacturer for compatibility and application requirements. This will typically require Rust Bullet to reach a full cure and then scuff the surface with 80-100 grit sandpaper to break the glaze and create a profile. Always confirm with the manufacturer prior to application.