RustBlast is a powerful rust remover, zinc phosphate pre-primer, and metal etch. RustBlast effectively dissolves rust, corrosion, metal oxides, and tarnish from most metal surfaces. RustBlast is ideal for removing rust from chrome surfaces. Easy-to-use spray or brush application. Apply RustBlast full strength to a clean surface keeping it wet for at least 30 minutes or more and watch rust, corrosion, metal oxides, and tarnishing vanish before your eyes! RustBlast will gently etch the surface and leave a zinc phosphate coating to ensure a strong bond with any paint.