I had already put two coats of Master Series Silver under my cowl. Today I decided to put three coats of Rustoleum Stop Rust spray paint enamal over it. When I finished top coating the cowl I headed back into the interior of the Fiat and put a second coat of silver over the entire interior. From the fire wall all the way under the back seats. The can recommends allowing 3.5 hours drying time prior to top coating. I'm not sure if I'll get to it today, but I have seven days to top coat before needing to sand. I'd love to have three coats of black gloss on there before tomorrow. We will see.