Mark, Kerik,
I have had problems consistently clearing Satista prints made on BFK,
using a mix of warm Na4EDTA + citric acid (2% of each). However, Cot
and Arches Platine clear to paper base with ease.
I would like to try Permawash with BFK. What brand of Permawash do you
use, and how many sq. inches does a 4oz/gallon solution clear?
I found the use of Kodak's HCA after fixing with Ilford's Hypam
bleached the print. Switching to sodium thiosulfate has eliminated this
problem.
Thanks. Rajul
On 28-Mar-06, at 12:06 PM, Ender100@aol.com wrote:
>
> 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 22:12:38 2006
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