Re: Flash Copper
What has worked for me.
Alkaline chrome strip if there is chrome, dremel any real bad dark pits lightly, don't make more work for yourself then needed, Citrus acid based cleaner and scrubbing brush. Activate like it was zinc, i.e. in 10% sulphuric solution, chloride zinc heavy and sand and repeat zinc, zinc is cheap and forgiving! then flash copper heavy and take it from there.
I have used flash copper over sanded through flash copper on zinc plated pot metal, I have even put more zinc over copper then sulphuric activated the zinc. If you can get a clean layer of zinc on zinc diecast first it all becomes much easier.
Don't forget the various degrease and rinse steps in between
Downside.... You need a zinc setup as well, but zinc is very usefull and often overlooked as the enemy when it comes to copper and NiCo plating.
Last edited by KCV6; 06-04-2007 at 02:09 AM.
|