It creates a barrier against corrosive elements and therefore provide rust prevention. Rust Inhibitor is a water-clear, flexible, hard-coat resin that works as a permanent protection against water, salt, dirt, urine, and corrosive chemicals that lead to rust. When applied properly it won’t yellow, crack, peel, or flake — it will form a seal that inhibits paint oxidation, metal corrosion, pitting, and staining. It can be washed out easily by pressurized water. There are many ways to prevent and manage rust, but there’s no stronger defense than Rust Inhibitor.