Homebrew PCBs

--- In Homebrew_PCBs@yahoogroups.com, lists <Stuartlists@...> wrote:
>
> 
> Yup, most fixers in use are "acid-hardening".
> 
> Is it "slower" than the fixer you were using previously, which might
> suggest Sodium rather than Ammonium Thiosulphate?
>
Don't really know.  It wasn't very obviously slower, though.  About one minute in the fixer at a 1:4 dilution, and all the white was gone.
I left it in for two minutes just to be sure the fixing was completed.

Jon