jeffbuck@swcp.com
Date: 04/09/03-03:31:17 PM Z
I'm still waiting to hear if anyone has noted any decrease in recent times in
the price of palladium chemistry on the part of any of our well-known vendors.
It seems to me they all speak of their prices being tied to the market for
commodity palladium. Anybody seen anything? -JB
mmatusz@pdq.net said:
> I have used the following technique to palladium tone Van Dyke prints
> (presumably it would also work on kalitypes as well). After exposure the
> print is washed and then cleared in a Kodak hypo clearing agent to remove
> iron salts, then it is washed again and toned in palladium. My palladium
> toner consisits of 1-2 drops of 20% palladiun salt (it could be Na2PdCL4
> or Li2PdCl4) in about 0.5 cc 20% citric acid. I spread this on top of a
> wet 4x5 print and drag it across with a glass rod. Toning is very fast.
> You can use more or less palladium to control the toning. If you let the
> toning solution contact the paper for too long palladium has a tendency to
> stain paper. Then a short water wash and another wash in a hypo clearing
> bath, followed by regular fixer. No need to worry about overfixing at this
> point. The image will not bleach. Palaldium toning will lighten the print
> and change the color to dark brown.
> Marek
>
>
> > I've noticed that the spot price of Palladium metal appears to be at a
> > five year low. Does anyone know
> > if this has effected the cost of Palladium chemistry?
> > Also, would anyone have a formula for plating Palladium or Rhodium onto
> > Silver or Gold?
> >
> > -Phillip
>
>
>
>
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