--- In
Homebrew_PCBs@yahoogroups.com, "jam5411" <mardock@...> wrote:
>
> Yesterday I spent a good amount of time trying several different
> inks and board temps.
>
> Using the C84 and Epson Magenta TO443 (Probably is not the correct
> ink) with the board heated to 75C and a cure of 235C the ink came
> off the board in the etch. Etchant was fresh HCl/H2O2 (FCl might not
> do this, but I had none).
>
Hi, I have found that inks don't hold up too against the muratic acid/peroxide bath,
(even sodium and ammonia persulfates)
so i switched to ferric chloride
and get really good results.
I am currently using durabrite yellow with really good etch's
Could use durabrite magenta, but the ink bunches up on the board
if not dried instantly.
The persulfates just lift the ink off the board.
( i printed and etched a sspcb that is smaller than a dime, just for testing)
Fecl works best for direct ink printing IMHO.