If you blast the metal stuff and they have a little roughness to them. Go over them with a wire wheel, nylon impregnated wheel, or a med to fine scotch brigt discs.
If there is some minor pitting sand and scotch bright as required. If you end up with some scratches you could even hit them with a sisel wheel if you have a Baldor buffer.
The nicer the metal is the better the plating will come out
And yes clear zinc or clear cad. I am fortunate to be able to get cad done. Last's along time. A much better plating than zinc IMO. The one in the photo is cad.
Now git wit it Sammy
