Homebrew PCBs

"Leon Heller" <leon.heller@...> writes:
> I forgot to mention that it might contain oil of wintergreen, which will 
> leave an oily residue. Pure IPA is best, and is easy to obtain from 
> electronic suppliers.

Ok, the two alcohols I have are both 70% alcohol, with nothing else
but water.  They got off most but not all of the residue.  The water
pic didn't do much for the remainder.  Xylene helped a little, but
there's still residue.

Time to email the manufacturer, I suppose.