If you keep the Ferric Chloride in a container with a lid and add a bit of > HCl every few months before a use, it will etch PCBs for years if you use > air bubbler agitation. Better to keep it. > That works for FeCl3 too? I thought that was just for CuCl2 solution. Chris [Non-text portions of this message have been removed]
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Re: [Homebrew_PCBs] Old etch
2010-04-02 by Chris Maness