Hi jd,
It wouldn't hurt to try it on a test board.
I've found that removing toner with acetone works well with FR4 and
CEM1. I've only had problems with staining on FR4 if I used too
little (using a cotton ball applicator).
It could be a matter of technique. Use enough solvent to disolve the
toner and getting it off before the solvent evaporates.
Acetone is nasty stuff. Eats through latex and many plastics. Wear
goggles too...
Regards,
Dennis
--- In
Homebrew_PCBs@yahoogroups.com, "timbomcnuckle" <jaydag71@...>
wrote:
>
> Thanks folks! I ended up using some old thinnner that I had laying
> around and it seemed to work out fine.
>
> I am wondering though if I can use this stuff for cleaning after
> etching without the staining as cautioned above. I am not 100% on
> what it made of but I think acetone perhaps. I was surpirsed to se
> how well it actually worked though- as I had tried it a long while
> back on some boards I tried using the staples t-shirt transfer
> material (which is terrible btw)and it did nothing to help.
>
> Anyways, thanks again, jd