----- Original Message ----- From: "Stefan Trethan" <stefan_trethan@...> To: <Homebrew_PCBs@yahoogroups.com> Sent: Tuesday, October 07, 2008 12:34 PM Subject: Re: [Homebrew_PCBs] Re: Getting ready to switch from Ferric Chloride to ??????? > I've seen copper kettles and pots and pans.... The pans are usually coated inside with tin. I suppose that is toxic, but less so than copper. Leon
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Re: [Homebrew_PCBs] Re: Getting ready to switch from Ferric Chloride to ???????
2008-10-07 by Leon