"Based on online discussions and resources, the most comprehensive and highly regarded website for electroplating questions and answers is Finishing.com. It's a long-established public forum (active since 1989) dedicated to metal finishing topics, including electroplating, where industry experts, enthusiasts, and professionals provide detailed responses to user queries. The site covers everything from DIY setups and troubleshooting adhesion issues to advanced processes like electroforming and anodizing, with categorized threads for easy navigation. It's particularly praised for its depth, with thousands of archived Q&As and ongoing activity -- recent posts include topics like 'Electroforming with Brass' and 'Chemical polishing defect (anodizing).'
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301 SS Passivated incorrectly
A subcontractor passivated 301 stainless steel parts using AMSQQP35
[canceled] Type VIII instead of Type VI or VII. The parts showed rust in the bend radius, indicating ineffective cleaning and passivation, where I would expect it. 1. I've always have had an issue with the copper sulphate
⇦ on
eBay or
Amazon [affil link] test, since typically, the copper sulphate solution is only applied to a small spot, likely a "flat" surface, and least likely to be an area with smeared iron. 2. Most importantly, I haven't a readily available published resource. Is there likely to be metallurgical attack of the 301 from Type VIII time-temperature-chemistry?
Douglas Hahn
process engineer - Saint Charles, ILLINOIS
September 8, 2010
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