An acid based rust, scale and corrosion remover for ferrous alloys and aluminum.  Mar-Tek 70 contains a mineral acid which reacts with corrosion products to form water soluble salts which can be rinsed away.  An acid-stable, non-ionic surfactant is used to provide detergency for removal of oily soils and to quickly wet metal surfaces.  Mar-Tek 70 is usually applied by immersion but can be applied by other means such as spraying if immersion is not feasible.