Zerust products protect against rust by releasing an invisible, non-toxic, non-reactive and odorless corrosion-inhibiting vapor. Protect metal components by preventing corrosion for up to five years with anti rust products. Zerust can protect a range of metal items, including those created from aluminum, brass, copper, iron, nickel, steel, and silver. Rust prevention and anti rust bags do not affect the electrical or mechanical properties, or functionality of the metal components they protect. In fact, they actually help improve reliability by preventing corrosion damage that is too small to be seen by the naked eye.