--- In
Homebrew_PCBs@yahoogroups.com, "Stefan Trethan"
<stefan_trethan@g...> wrote:
>
> On Tue, 03 Jan 2006 16:37:32 +0100, Bruno St-Laurent <bsl88k@n...>
> wrote:
>
> >
> >
> > I do use a bubbler !!!, ok, then i need to get concentrated
H2O2!! is
> >
> > it easily available ???
>
>
> Yes, and not very expensive either. You want some around 30%.
> I was afraid the london bombings might cause more restrictions on
H2O2,
> but so far i have not heard of any such thing.
>
> ST
>
Stefan how much H2O2 do i add ????
Bruno