Homebrew PCBs

John, thanks for posting that. It has a lot of good info. 

I have been wanting to try a CuCl2 setup but had to wait for summer, when classes are over. 

Aaron



--- In Homebrew_PCBs@yahoogroups.com, "John Anhalt" <janhalt@...> wrote:
>
> I just added a text and MHT version to our files section: Seychell_Cupric Chloride
> 
> John
> 
> 
>   ----- Original Message ----- 
>   From: Aaron 
>   To: Homebrew_PCBs@yahoogroups.com 
>   Sent: Tuesday, May 08, 2012 3:25 PM
>   Subject: [Homebrew_PCBs] Re: Long-Term CuCl2 setup
> 
> 
>     
>   > Whether the copper is oxidized to Cu^+2 can be determined 
>   > by color. I just bubble air until all traces of brown/mud 
>   > are gone as per Seychell's instructions.
> 
>   He had a great web page describing the process but it seems to be down. Does anyone have an archived copy of the page?
> 
>   http://members.optusnet.com.au/~eseychell/PCB/etching_CuCl/index.html
> 
>   It covered how to determine optimum pH, specific gravity, temperature, etc and was probably the most thorough coverage I have seen given to the topic. 
> 
>   Aaron
> 
> 
> 
>   
> 
> [Non-text portions of this message have been removed]
>