Is there any suitable for home use solution to copper plate on top of zinc alloys?
I tried copper sulfate, but it corrodes the surface of the parts.
Tying actially to refinish a part, it corrodes where the base metal is exposed and I get ulcers on the surface.
Could that solution work?
Copper sulphate 35-40 gms,
Potassium sodium tartrate 180-190 gms,
sodium hydroxide 50-60gms,
20 °C temp.