Any metal that contains iron will rust when exposed to air and water, and can severely compromise the metal overall. Rust eventually weakens the metal—causing it to look rough and orange—by replacing strong iron or steel with a flaky powder.
Rust can also cause friction and thereby increase resistance between two parts that are meant to slide over one another smoothly. If enough friction is created, it can cause sheet metal to form holes, which is why rust is so damaging to the steel used to make cars and other large structures.
Due to the negative effects that rust can have on certain metals, utilising anti-rust coatings is imperative.
You need anti-rust in your vehicle, visit any AutoFast closest to you.