Homebrew PCBs

Yes, because according to http://www.p-m-services.co.uk/ferric_chloride.htm and http://artmondo.net/printworks/articles/ferric.htm, the CuCl builds up, while the Fe oxidizes to FeO and precipitates as sludge which can be decanted off.

--- On Fri, 4/2/10, Chris Maness <chris@...> wrote:

From: Chris Maness <chris@...>
Subject: Re: [Homebrew_PCBs] Old etch
To: Homebrew_PCBs@yahoogroups.com
Date: Friday, April 2, 2010, 10:57 AM







 



  


    
      
      
      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



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