Homebrew PCBs

----- Original Message ----- 
From: "mikezcnc" <eemikez@...>
To: <Homebrew_PCBs@yahoogroups.com>
Sent: Friday, July 30, 2004 8:05 PM
Subject: [Homebrew_PCBs] Re: Fwd: IPA and acetone


> Steve,
>
> It is a nice addition to the discussion. I personally don't need to
> use IPA anymore. What I need to use is acetone to dissolve the melted
> toner. I noticed that it helps if I leave the toner soaked in acetone
> and then rub it off, otherwise it is very hard to remove it just by
> rubbing it with paper towel. I am afraid that acetone is here to stay
> for the removal of hardened toner because any stronger chemical like
> Xylene is even worse to be around. I wonder what does ultrasonic
> cleaner do the hardened toner?

Many years ago, when I worked for Rank-Xerox UK, I was responsible for the
installation of an ultrasonic bath with a very nasty compound for removing
baked on toner from sub-assemblies when refurbishing them. It worked very
well, but you wouldn't want that stuff in the house. I got sprayed all over
with it once when I was testing a pump for emptying the tank. 8-(

Leon
--
Leon Heller, G1HSM
http://www.geocities.com/leon_heller