Hi Stefan,
The water in rubbing alcohol slows down the rate of evaporation.
That leaves residue from some of the stuff that was disolved in the
alcohol or water on the board.
I know. I've tried using rubbing alcohol as a flux remover. It
made a big mess. 98+% anhydrous isopropyl alcohol leaves a lot
less. I found it works best when I use compressed air to blow it
off the board instead of letting it evaporate. This might make
rubbing alcohol work better, but I know the anhydrous stuff is
better...
Regards,
Dennis
--- In
Homebrew_PCBs@yahoogroups.com, "Stefan Trethan"
<stefan_trethan@...> wrote:
>
> On Thu, 09 Feb 2006 21:26:40 +0100, dl5012 <dl5012@...> wrote:
>
> > You can't use drug store rubbing alcohol
> >
> > because it has too much water and will make things worse.
> >
> >
> > Are you trying laser transparencies with the hot removal?
> >
> >
> > Regards,
> >
> > Dennis
>
>
> Why would the water be a problem? It is soluble in etchant and
could be
> dried beforehand?
>
> ST
>