----- Original Message ----- From: "K Wolf" <kevinmwolf@...> To: <Homebrew_PCBs@yahoogroups.com> Sent: Thursday, May 10, 2007 10:44 AM Subject: RE: [Homebrew_PCBs] Re: Circuit Cellar article > Has anyone found the staedler (or other store-bought pens) able to > withstand > the muriatic acid and hydrogen peroxide etchant solution? I tried both the > sharpie "paint pens" with fair results, and sharpie permanents. Both seem > to > immediately dissolve in the solution. They work OK with ferric chloride. Leon
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Re: [Homebrew_PCBs] Re: Circuit Cellar article
2007-05-10 by Leon