Penetrates, loosens and removes brake dust, road film, dirt, and grease from wheels and rims. Great for friction or touch-free. It can be used through a chemical tire applicator (CTA) or a manual spray wand as a presoak step. It can also be used as an engine degreaser in self-service bays. Recommended for use in conveyor, in-bay automatic or self-service wash systems. pH: 13.5 - 14.0 concentrate.