Simseal® Simshield Rust Inhibitor Primer is specifically formulated for rusty roofs, serving as a key component in the Roof Sealing System. It primes and safeguards metal surfaces, enhancing the Protective Top Coat’s adhesion and ensuring optimal coverage. Ideal for treated bare metal surfaces, this primer is crucial in preventing further corrosion and prolonging the lifespan of metal roofs by providing a stable base for additional coatings.