This water-soluble anti-tarnish agent for copper prevents oxidation and chronic discoloration by forming complex protective compounds on copper surfaces. Coating treatment can be done simply by dipping. [Features] - Neutral water-soluble agent - Simply by dipping materials into the agent diluted 10-20 times, surfaces will have extended protection from oxidation and will maintain their sheen. - Surfaces treated with this agent will not suffer decreased electrical resistance. - Has good paint adhesion, reducing defect rate. - In the case of copper-finished articles that have already been discolored by machining oil or heated through machining, it is more effective if an oxide film removal agent is used along with copper CU-600. - Can be used to prevent discoloration after plating or barrel polishing. Also effective if used during the barrel polishing process. * For details, please download our catalogues or contact us.