U of S | Mailing List Archive | alt-photo-process-l | Re: gum mixes

Re: gum mixes

I thought for a moment the list was dead--no posts at all until yours for days!

You all made me decide to track down some lumps and try it. Henry gave me a source for Kordofan in GB which not only has that, but other historic pigments and substances--very cool place.

I've always used powder and whipped it up in the blender.

Hey, here's a fun recipe from a patent--a powdered sensitized formula by a Joseph Sury from 1908; just mix n' go:

A dry mix of 20 parts gum, 1 part sugar, 4 parts pot bi, 20 parts pigment, this powder is dissolved in 2x its weight of water at time of use to form a sensitizing liquid.


----- Original Message ----- From: "Kees Brandenburg" <ctb@zeelandnet.nl>
To: <alt-photo-process-l@usask.ca>
Sent: Saturday, December 29, 2007 4:22 AM
Subject: Re: gum mixes

On 24 dec 2007, at 16:30, Christina Z. Anderson wrote:

Wow, Henry,
You are the only one I know, now, that mixes gum from lumps.
Hi chris,
See my earlier post: I'm a 'lumper' too ;)
Lumps are great, you see what you get and the gum solution I get is very clear!


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