Archive of the former Yahoo!Groups mailing list: Homebrew PCBs

I was able to locate 29% H2O2 at the following location:

http://www.finlandiapharmacyonline.com/products/O2XY%252dPLUS-Food-Grade-Hydrogen-Peroxide-29%25.html

I am lucky enough to live in Vancouver so just went directly to their store.

Jim VE7SU

--- In Homebrew_PCBs@yahoogroups.com, Jim <n6otq@...> wrote:
>
> Some snippage ...
>
> You can get "40 weight" peroxide, which I believe is 10%, from Sally Beauty Supply.  It works fine.
>
> They have a lot of other interesting chemicals and devices there too.
>
> 73
> Jim N6OTQ
>
>
>
> >________________________________
> > From: designer_craig <cs6061@...>
> >To: Homebrew_PCBs@yahoogroups.com
> >Sent: Thursday, May 9, 2013 12:28 PM
> >Subject: [Homebrew_PCBs] Re: etching solutions
> >
> >
> > For best results use 30% if you can find it.
> >
> >Cu + CU++ ---> 2CU+  the etching equation 
> >
> >http://www.pcbfab.com/chemistry-of-the-cupric-etch
> >
> >Craig
> >
> >
>
> [Non-text portions of this message have been removed]
>