578 is a liquid, inorganic, Sodium Molybdate free, rust inhibitor designed for treatment of steel, iron, and yellow metal parts. 578 works by reacting with the surface of the metal and passivating it. There does not need to be any residual 578 left on the metal surface to provide rust protection. Parts can be welded, painted, plated or assembled without the additional step of removing the rust inhibitor.
