Homebrew PCBs

I'd avoid the sulphuric etchants on suspicion, tin is used as resist there.
Hardly anyone uses that in a homebrew setting anyway.

CuCl eats anything short of titanium it seems.

ST

On Tue, Dec 22, 2009 at 12:33 AM, DJ Delorie <dj@...> wrote:
>
> I suspect the process is the same, along with undercutting etc,
> although the chemistry might have to change.  Brass works with PCB
> techniques because the brass reacts to etchant the same as copper
> does.
>
> Bronze is still a copper alloy, it might react the same too.  If you
> want to mail me a small piece(like, 0.5" sq or smaller, doesn't take
> much), I can dip it in the CuCl etchant and see what it does.
>
>