Promote topcoat adhesion on bare metal. Metal Wash cleans and protects in one quick step without using harsh or flammable solvents. This non-toxic compound removes grease, oily preservatives and contaminants, leaving behind corrosion inhibitors that prevent flash rusting for up to 3 weeks and promotes adhesion of paints and powder coatings. Ideal for the preparation of any base metal, including freshly abrasive blasted parts (even after blasting, surface contaminants remain). Economical to use, metal wash is a dry compound that can be mixed with hot water in whatever quantity is needed (makes 7 quarts).