This product by our company with well-known institutions of higher learning through long-term research and development of proprietary products for the whole world for copper passivation has been the lack of resistance to salt spray is not long points, breaking the traditional formula currently on the market, there has never been bold The synthesis of new materials, new technology. Currently in copper passivation has reached world leading level. With chromic acid, and benzene Department handles traditional passivation unparalleled results. For copper chemical polishing, electrolytic polishing, mechanical polishing and other surface treatment immediately after the passivation treatment, the active metal surface is converted to inert metal surface, which can effectively prevent the copper surface oxidation, maintaining polished character. Suitable material for: All of copper and copper alloy materials. Kay League copper passivation solution :: a powerful advantage, proprietary blend of patented products, market traditional products can not match. 2, simple operation room, without complex equipment, can be used at room temperature. 3, high: passivation shorter time, high efficiency. 4, oxidation gasification of high salt spray test is better than chromated. 5, safety and environmental protection, no contain harmful substances, odorless, water-based products.