How can I tell when to apply the next coat of Rust Bullet?

When applying additional coats of Rust Bullet or BlackShell the previous coat should not be wet or tacky; if you are unable to transfer the coating to a gloved finger, the surface is ready for an additional coat. Approximate drying time between coats is two (2) to four (4) hours for Rust Bullet Coatings, depending on humidity levels. When excessive wet film is applied, additional cure time will be necessary. Rust Bullet Coatings are moisture sensitive; in high humid conditions of 80%+, Rust Bullet will cure much faster than it will in lower humidity. When applying additional coats from one day to the next, especially in the morning, make sure there is no dew or condensation on the previous coat. The surface to be coated must be completely dry.

Rust Bullet Rapid Fire Accelerator can be added to the Rust Bullet coating formulas to decrease the normal recoat time of 2 to 4 hrs to approximately 30 to 40 minutes per coat. Rapid Fire makes it possible to apply multiple coats of Rust Bullet in a single day and reduces project completion time by as much as 80%. A Rust Bullet coating accelerated with Rapid Fire can be applied with either an HVLP Spray System or an Airless Spray System. For maximum rust prevention, ensure that corners, edges, and heavily pitted areas are adequately covered. Apply an adequate number of coats sufficient to achieve the dry film thickness appropriate for the project.