Yes, that appears to be the story, at least from Bounty. I checked in
the family on that one and got the raised eyebrows. Oddly enough,
using I don't seem to have to clean as much using H200 as when I was
using the ironing process. Mike
--- In Homebrew_PCBs@yahoogroups.com, "crankorgan" <john@k...> wrote:
> So the answer would be, don't use paper towels that have printed
> designs on them.
>
>
>
> --- In Homebrew_PCBs@yahoogroups.com, "mikezcnc" <eemikez@c...>
wrote:
> > 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