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Old 09-02-2003, 01:19 AM
mdarr mdarr is offline
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Join Date: Feb 2003
Posts: 24
mdarr
Default Chrome Peeling and Not all Areas getting Chromed

I just plated a set of hood hinges but I have two problems. 1. Where the mounting bolts go, the chrome is peeling from tightening the bolt. More accurately, I believe its actually the nickel separating from the copper as its peeling down to the copper plate. I've had this problem before and it seems to only occur AFTER the chrome plate. In other words, if I stop after the nickel plate everything seems fine. Its almost as if the chrome is causing the nickel to lift from the copper when there is any kind of stress or rubbing going on with the part such as tightening down a bolt on it. I'm pretty sure I'm degreasing properly because I make sure the part passes the water test before each plating step. The second problem is not all of the part is getting chromed. You can look at the part and tell where the chrome is versus where the nickel (yellow tint) is. Its random on the part. Really strange. Several parts will not chrome in the area where the hanging wire is contacting the part but it will chrome everywhere else. I'm not just talking about the immediate spot where the wire contacts the part, but a radius area AROUND that contact point. What gives? Any insight would be mUCH appreciated. Thanks!!
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