Re: gum mixes

["Christina Z. Anderson" <zphoto@montana.net>]

Kees,
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.



Chris

----- 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!
>
> kees