Homebrew PCBs

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
>