Stefan,
I believe that horribly stuff I have been having all the trouble with
is FR4 material - this is the new stuff I got that wouldn't accept the
toner transfer until I did the pre-etch. However, I was also doing
toner transfer of legends on the bare expoxy side too and it wouldn't
take either until I sanded it with 600 grit paper and then polished it
with 0000 steel wool. After that, the toner stuck pretty good to the
epoxy. This was done using a magazine page and an iron.
Chris
> Anyway, what i have found is that the real FR4 i have seems to take
the
> toner badly, especially if you use single-sided stock and try to
transfer
> on the smooth side.
>
> ST
>