Pyrocat-HD formula

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From: Kevin H. Phillips (cicero@gte.net)
Date: 01/07/01-03:10:11 PM Z


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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