--- In
Homebrew_PCBs@yahoogroups.com, Lez <lez.briddon@...> wrote:
>
> I know nothing of bomb making, except the people doing it are screwing
> it up for homebrew pcb as more and more restrictions are imposed.
>
> Lez
>
I wouldn't worry too much about H2O2 availibility. The pcb makers are a
very small minority, then the authorities start setting the availibilty
rules, they will have to listen to a very loud bunch of housewives.!
Let's be realistic, there is a difference betwenn buying a single liter
and 200.
For etching you really don't need the 30% H2O2, it results in a very
violernt reaction. I found out the hard way.The standard 3% is just
about the correct diluted strength. Yes, a stroneger versioon is great
for regeneration, but the stuff is so cheap anyways.
<yc