Kerik,
I've been using Permawash with PT/PD prints for about 2 years now and find
(especially with COT 320) it really clears quite quickly. I use 4 oz / gal
instead of the recommended 3 oz and use 3 trays
and try to keep the temperature higher than room temperature. I also really
like it because it comes in liquid form and I don't have to mix a powder.
Mark Nelson
Precision Digital Negatives
In a message dated 3/27/06 9:34:40 AM, kerik@kerik.com writes:
> I think the issue may be that EDTA by itself doesn't work very well for
> clearing pt/pd. I've had many comments from workshop students who had
> previously tried EDTA alone and reported such problems, but adding sodium
> sulfite to the mix did the trick. Approx one tablespoon each of EDTA and
> sodium sulfite per liter works well on most papers, as does Kodak Hypo
> Clearing Agent and Heico Permawash.
>
> Kerik
>
>
Received on Tue Mar 28 14:07:12 2006
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