Homebrew PCBs

I was thinking of getting bromophenol blue and methyl orange. What do
you recomend? Shipping tends to be expensive so I thought I would try
to get everything I needed (or might) at one time.

The indicator paper showed a clear red color which corresponded to pH
2 and then pH 3. The etchant color did not seem to interfere.

Grant

--- In Homebrew_PCBs@yahoogroups.com, Adam Seychell
<adam_seychell@y...> wrote:
 
> > I also found an inexpensive source of indicators in the US who will
> > send them up here.
> 
> What indicators are you getting ?
> 
 
> I would imagine the dark color of this solution would make pH 
> papers useless.