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?
>