Homebrew PCBs

On Tue, 28 Nov 2006 06:43:34 +0100, Syd H. Levine  
<wireline@...> wrote:

> Ethanol will most definitely attack polystyrene and its cousins.  If you
> have not noticed it, it is because you have not been handling true
> polystyrene.  It does not attack most other plastics.  My paper towel
> dispensers in the shop are polystyrene, and if my fingers are wet with
> ethanol, they will stick to the darn things and leave fingerprint marks.


I'll try again then!

Did you use pure ethanol or a denatured variety?

ST