[Alt-photo] pre-soaking fumed silica for pt/pd

Christian Nze christnze at gmail.com
Sun Sep 3 21:20:21 UTC 2017


that's the way I use it  . always have 10 liter of dilute fumed silica in
my lab . But I do not mix it with my acid bath. I acidiy first wash and
befor drying put the paper in the fumed silica bath.  I 've just used it
for platinum and cyano.

2017-09-03 22:11 GMT+02:00 Gareth Jarvis via Alt-photo-process-list <
alt-photo-process-list at lists.altphotolist.org>:

> Hi all,
> Does anyone have experience of applying fumed silica to paper in a liquid
> form? (soaking in trays)
> The place I once worked at started to add fumed silica to their oxalic
> acid pre soak for fabriano
> Was thinking it might  be useful to add some at the pre-shrink stage with
> gum over pt in mind
> best,
> Gareth
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> Alt-photo-process-list | altphotolist.org

Christian Nze

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