I called Bounty out of curiosity. I read before about the possibility
of paper contaminating my boards. Bounty checked with their chemical
engineers and no, there is nothing that could possibly transfer and
contaminate except for the paper that is printed!!!! The paint can be
dissolved and leave particles or even images as mentioned on the
packaging. Hopefully it helps. Mike
--- In Homebrew_PCBs@yahoogroups.com, "crankorgan" <john@k...> wrote:
> Thanks Leon! Now that makes sense. The mistake I was making was
not
> shaking the spray can of sensitizer. I can't tell you how many
boards
> I sprayed in the dark. I was allowed to use a small a red light.
After
> cleaning the board I would stand them up in the dark and spray
them. I
> then dried them using an old hair drier. The negative was that red
cut
> and peal stuff. I did some boards for a local college through a guy
at
> work. He got his degree and left our company without paying me!
>
>
>
> --- In Homebrew_PCBs@yahoogroups.com, "Leon Heller"
<leon_heller@h...>
> wrote:
> > ----- Original Message -----
> > From: "crankorgan" <john@k...>
> > To: <Homebrew_PCBs@yahoogroups.com>
> > Sent: Friday, September 10, 2004 1:15 PM
> > Subject: [Homebrew_PCBs] Don't use paper towels
> >
> >
> > >
> > > After you clean up your copper surfaces don't use a paper
towel on
> > > the copper. Air dry the copper. I was told if you rub the board
with a
> > > paper towel it leaves a coating. I think he said it was some
kind of
> > > silica? Maybe somebody he knows?
> >
> > Silicone oil, perhaps. It used to be used on the fuser roller in
> some Xerox
> > copiers. Don't get it in your eyes, it makes them sore for several
> hours
> > (speaking from experience).
> >
> > Leon
> > --
> > Leon Heller, G1HSM
> > http://www.geocities.com/leon_heller