Zep Rust Converter and neutraliser with a brush for easy application Advanced Rust-Fighting Power Our enhanced formula combines potent active ingredients with increased penetrating power, effectively converting stubborn rust and providing superior corrosion protection. Effortless Application Process Simply remove loose rust, apply evenly with the lid brush, and let dry before painting. For thick oxide layers, a second coat ensures optimal results. Versatile, Long-Lasting Protection Zep Rust Converter creates a protective barrier against moisture on various metal surfaces, both indoors and outdoors, preventing rust recurrence and restoring surfaces to prime condition. Our Story Zep has been a leader in auxiliary chemicals for both civil and industrial maintenance since 1937. Zep UK offers a range of products for multiple sectors.