Homebrew PCBs

--- In Homebrew_PCBs@yahoogroups.com, "sam_jfs" <Samuel_joao@...> wrote:
>
> I use Muriatic acid and H2O2 ( medical grade 3% too ) with good
> results. The only problem is, after some days i can´t really etch with
> it, i must throw it away and make a new one, i don´t know why, i don´t
> understand chemistry ...
> I use 3:1 ( 3 of H2O2 and 1 of Muriatic acid ), it´s quite fast, about
> 5 to 10 minutes at room temperature (+/- 20ºC ).
> 

You can find a lot of good information on making and regenerating CuCl 
etchant in the 'Links' section of the group.


Regards, Bob