[Alt-photo] Reply: Losing DMax in Kallitype prints

Pablo Kolodny pkolodny at gmail.com
Thu Sep 3 23:58:48 UTC 2020

After working with kallitypes for the last years and platinum and/or palladium toning them I can toners get exhausted sooner than wished. 
I’d say I’ve been fine at that by about 30 prints per liter of toner 25x25 cms size each print. 
Never used gold toner so can’t tell but a clue to friend of mine does use the thiourea formula someone posted earlier with success 

Hope it helps


> On Sep 3, 2020, at 8:47 PM, George L Smyth via Alt-photo-process-list <alt-photo-process-list at lists.altphotolist.org> wrote:
> Probably not.  I've got a dehumidifier in my darkroom that pretty much runs constantly this time of year.  The last time I printed (successfully) was at the end of winter, so it was relatively dry then, but I am guessing not all that different from now in my room.
> I have not kept track of drying time, but it has varied from 30 minutes to half a day (when I ran out of time one evening).
> george

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