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Two Part Silver is Discolored

October 22, 2011

I use a two-part silver process. I expect it to be bright. Sometimes, however, the resulting film that results is very non-reflective and steel-gray in color, not bright. What can cause this?

Dave Corridon
Process Engineer - Oakley, California

Carbon treatment should be performed regularly (monthly or even twice a month), and on top of that, brightener additions should be made based on Hull Cell ⇦ huh? test or by analysis. The previous is usually what is done to keep a silver bath with a bright finish.

Glenn Foster
- San Diego, California. USA
December 12, 2011

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