The leading tarnish remover for cleaning and preserving copper and sterling silver, Tarn-X PRO Tarnish Remover is highly effective at brightening and shining. No buffing required and the clean-rinsing formula leaves no residue, and saves time and effort! Perfect for use with copper fixtures, silverware, sterling silver, platinum, gold, copper coils and fins, heat exchangers, copper pipes, HVAC, welding and plating prep, precision optics, recycling and metalwork. Application: Metal Polishing; Applicable Material: Copper; Diamonds; Gold; Sterling Silver; Platinum;; Chemical Compound: Disodium Cocoamphodiproprionate; Methanol; Sulfamic Acid; Thiourea; Dirt Types: Patina; Tarnish.