Superior removal of rust, lime, hard water and mineral deposits. Mildly acidic, bleach-free. Removes tarnish, oxidation, grime and scuffs. Cleans, shines and restores stainless steel, copper, brass, ceramic, porcelain, chrome, fiberglass and other hard non-stone surfaces. Great for a variety of industrial applications, plus cookware, cutlery and deep-cleaning drained floors and grout.