Homebrew PCBs

--- In Homebrew_PCBs@yahoogroups.com, "daviddmcnab" <david@...> wrote:
>
> Hi,
> 
> Can anyone suggest any chemicals which can dissolve paper fragments
> from a toner-transferred board without damaging the toner deposits 
or
> eating into the exposed copper?
> (snip)


David, 

While I would not expect it to dissolve paper, you might
give consideration to using a mildly abrasive Tooth Paste
and a soft bristle tooth brush. Scrub in a circular motion.

I have not tried this my self as it just occurred to me, but the 
Toner Transfer is basically a plastic which I think should 
withstand the scrubbing for a lot longer than the paper fibers.

I suggest using a soft bristle brush because I think the bristles
would be more likely to flex and bend over instead of possibly
gouging into the edges of the traces and pads as harder, stiffer 
bristles may tend to do.

BTW there are starch based disolvable papers out there,
see my post on the subject "Water Soluble Paper " 

( http://tech.groups.yahoo.com/group/Homebrew_PCBs/message/11416 )