Homebrew PCBs

Thanks for the advice Stefan. Great tutorial on direct printing by the way. I am so tired of TT. 

--- In Homebrew_PCBs@yahoogroups.com, Stefan Trethan <stefan_trethan@...> wrote:
>
> If you etch enough boards and keep adding HCL and H2O2 you'll
> eventually get CuCl. At some point enough CuCl is present so you don't
> have to add new H2O2 for every board, instead you only need to
> regenerate it from time to time. But it's a lot of boards to get
> there.
> 
> 
> Dunno about the acrylic long term, a few months it will be OK, don't
> have experience with it longer than that, I use glass.
> 
> ST
> 
> On Sun, Feb 7, 2010 at 6:19 PM, oliverstwists <oliverstwists@...> wrote:
> > I hear you on reason for etching outside.
> > When you say CuCl, is the copper chloride etchant the biproduct of the HCL H202 etchant?
> >
> > On an other note, I've made a etching tank out of acrylic plexiglass and bonded the seams with MEK solvent. I've seen tanks like this used for ferric and other etchants.
> >
> > Do you, or anyone know if a plexiglass tank like this could withstand HCL H202 without degrading?
> >
>