Gold and silver protective agent

IWG - XPOO23 silver protective agent Profile: IWG-XPOO23 silver protection agent is a heavy metal-free environment-protective agent, can effectively prevent the metal surface oxidation, high temperature 360 ??℃, 10 hours and dipped 5% potassium sulfide not more than 5 minutes discoloration, dip 5% ammonium chloride do not change more than 30 minutes, by 68% nitric acid test, salt spray test up to 96 hours. This protection layer does not affect the plating rate and weldability of the workpiece, widely used in electrical, electronics, jewelry, high-end tableware, especially for the protection of gold, silver, copper, tin, nickel and other metal surface. Widely used in rack and barrel plating consecutive plating.