Re: Pyrocat-HD formula

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From: Sandy King (sanking@hubcap.clemson.edu)
Date: 01/07/01-04:17:20 PM Z


Kevin,

You can find the formula and a brief review of it at http://unblinkingeye.com/

ret me know if you have any questions.

Regards,

Sandy King

>Sandy,
>I was wondering if the formula you mentioned is archived or, if not, you
>would be willing to jot it down. I would be interested in knowing about
>it.
>
>Thanks very much,
>Kevin Phillips
>
>Sandy King wrote:
>>
> I will also recommend
>> my own Pyrocat-HD formula, a staining develper based on
>> Pyrocatechin/Phenidone. It is less expensive to mix than PMK and ABC+ and
>> works in place of either of them: a 1:1:100 dilution of Pyrocat works
>> almost exactly like PMK 1:2:100 (both in terms of development times and
>> curve characteristics), while diluted 2:4:100 it replaces ABC+ (and is even
>> superior to it for zonal expansion of tough films like BPF and HP5+).
>> Pyrocat also is much less likely to stain film than pyrogallol based
>> developers lier PMK and ABC+ which must be used with rotarty processing
>> with great care.
>>
>> Sandy King


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