This agent removes tarnish and discoloration on copper, copper alloys and other metals. CU-600 is a neutral agent, safer than other agents. Won’t damage metal surfaces since it only removes metal oxide. [Features] - Removes oxide film on copper and restores original color. - Just by dipping materials in this agent, tarnish is easily removed. - CU-600 is a neutral oxide film removal agent for copper. - Won’t damage metal surfaces, since it only removes copper oxide. - Low-cost since it can be used undiluted or diluted. - Copper soft etching agent Z series is also available. Recommended for use with our tarnish removal agent. * For details, please download our catalogues or contact us.