Homebrew PCBs

That question puzzled me, too. Originally I used a cigarette lighter 
fluid (european Benzine) which always removed something 'dirty' afer 
having used the dish washer soap (detergent). On a similar subject I 
read somwhere, maybe even on this board, that a paper towel leaves 
silicon dilms on board. Talking to a paper eengineer did not confirm 
it though.

What is IPA?

Mike



--- In Homebrew_PCBs@yahoogroups.com, Richard Mustakos 
<rmustakos@a...> wrote:
>   I have scrubbed the surface of boards , and washed them with 
> detergents, but until I used IPA, I was never able to get the toner 
to 
> stick reliably.  Does anyone know why the detergent doesn't clean 
the 
> oils off?  Does it leave it's own coating?
> Richard