Homebrew PCBs

CuCl can be regenerated indefinitely and is therefore cheaper.
Also it can be made from chemicals that are even more readily
available than Amonium Persulphate.

There is no reason not to use your Persulphate if you can get it
easily and it works for you.

ST

On Tue, Sep 27, 2011 at 3:49 PM, Tom Biery <judsquare@...> wrote:
>
> Can someone please tell me why not just use Amonium Persulfate.  It seems freely available, that is what I am using and it works fine, I find that if maintained at a temperature of 120 degF the etching is complete in 20 minutes.  What am I missing?
>
> [Non-text portions of this message have been removed]
>
>
>
> ------------------------------------
>
> Be sure to visit the group home and check for new Links, Files, and Photos:
> http://groups.yahoo.com/group/Homebrew_PCBsYahoo! Groups Links
>
>
>
>