How Do You Remove Oxidation On Copper Foil?
Copper is a warm-colored metal that oxidizes very easily. The elements can turn it many colors over time, eventually turning it black. To keep your copper nice and bright, clean it and then apply a clear coating, such as an acrylic spray. With heavy use, coatings will wear away, but the metal may be cleaned again and a fresh coating applied. You can remove the oxidation in several ways, including by hand, using a buffing wheel, heating it or with a chemical. To remove oxidation by hand on a small item, use an old toothbrush with stiff bristles. Dip the toothbrush into warm, soapy water and then into the powdered pumice. Scrub the copper with the pumice-laden toothbrush, getting down into any crevices or indentations. If the copper is extremely tarnished, scrub it under running water. Once the desired brightness has been achieved, dry the piece immediately and thoroughly. Leaving water on the copper will cause it to oxidize again. Apply a coating, if desired. Clamp the copper piece to a
