Hi Stefan,
I had previously used regular dishwashing detergent. And it helped
wet out the paper. But did not work as well on the clay coating. The
green pad is important too. Same technique, the only difference was
the dishwashing detergent.
In a previous life, I was a textile chemist. We routinely used
caustic scours to clean the fabvric and machines. This removed dirt,
oils and binders (startch, PVA and acrylics) used in manufacturing
the base fabric.
TANSTAAFL!
Myc
--- In
Homebrew_PCBs@yahoogroups.com, "Stefan Trethan"
<stefan_trethan@g...> wrote:
>
> On Tue, 31 Jan 2006 15:47:27 +0100, Mycroft2152
<mycroft2152@y...>
> wrote:
>
> > I found that automatic dish washing detergent helps wet out and
remove
> >
> > the paper. I let the board soak for 10 minutes in a solution and
the
> >
> > paper comes off very easily.It's probably the alkalinity in the
> >
> > detergent that helps. After the soak, I use a 3M green pad to
rub off
> >
> > the paper. I was pleasantly surprised to find that the white
haze that
> >
> > was usually left on the toner for the clay also was removed. The
> >
> > traces looked nice and black.
> >
>
>
> Yes, i notice the same effect with detergent (for manual
dishwashing). I
> was thinking it is because it lowers the surface tension /
increases
> wetability but it might be the alkalinity too.
> With the detergent i tried the effect was not sufficiently strong
to
> justify the added effort in using it compared to plain water,
especially
> if i roughen up the back side of the paper with a wire brush or
sanding
> paper just before soaking.
>
> I dunno if the removal of the clay is due to your detergent, or
the green
> pad?
>
> ST
>