Super concentrated alkaline, non-acid aluminum brightener. Very safe, easy to use formulation that will not etch glass. Excellent 3-way cleaning action gives superior results on all painted and aluminum transportation equipment, air conditioning coils, concrete surfaces, machinery, industrial soils, and on all types of food contact surfaces. Authorized by USDA for use in federally inspected meat and poultry plants. Not for use on zinc and highly polished or anodized aluminum surfaces.