Cyanogen-free environmentally friendly electrolytic silver retardant can remove the silver plating layer on copper, copper alloy and steel substrate, with high removal efficiency, non-corrosive to steel substrates, and almost non-corrosive to copper and copper alloys. The withdrawal process will not produce hydrogen embrittlement on the substrate, cyanogen will not be produced, the tank liquid is well adjustable, and the operation control is simple.

Used to remove silver plating from nickel, copper or copper alloys.