Can someone please tell me why not just use Amonium Persulfate. It seems freely available, that is what I am using and it works fine, I find that if maintained at a temperature of 120 degF the etching is complete in 20 minutes. What am I missing? [Non-text portions of this message have been removed]
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Re: [Homebrew_PCBs] Re: Using Cupric Chloride
2011-09-27 by Tom Biery