Rust-Oleum Protective Enamel w/ 5-in-1 Spray, Flat Black a durable and versatile finish that protects surfaces from rust and corrosion. This flat black enamel spray is designed to provide excellent coverage and a smooth, professional look on various surfaces. Its 5-in-1 formula not only protects metal but also cleans, primes, and seals, making it an all-in-one solution for your painting needs. I for both indoor and outdoor use, this spray enamel ensures long-lasting protection and enhances the appearance of your projects. Model Number: