Archive of the former Yahoo!Groups mailing list: Homebrew PCBs

Chris Maness wrote:

> If you keep the Ferric Chloride in a container with a lid and add a bit of
>> HCl every few months before a use, it will etch PCBs for years if you use
>> air bubbler agitation. Better to keep it.
>>
>
> That works for FeCl3 too? I thought that was just for CuCl2 solution.

I don't know. It's just the brown stuff from the shop that eventually
goes green after enough copper and airation.