RE: (2) Pigment that makes gum insoluble w/o exposure?

[Loris Medici <mail@loris.medici.name>]

Thanks Kees. Will cut the exposure considerably then (1 stop!), because
I have already done that (1/3 stop)...

Regards,
Loris.

-----Original Message-----
From: Kees Brandenburg [mailto:ctb@zeelandnet.nl] 
Sent: Monday, September 24, 2007 11:21 AM
To: alt-photo-process-l@usask.ca
Subject: Re: (2) Pigment that makes gum insoluble w/o exposure?


Hello Loris,

Smincke Ruby red works fine for me in gumprinting. No dark effect.  
I'm using it in tri-color gum. Try cutting down exposure a little bit  
with it, compared to other colors.

kees



On 24-sep-2007, at 8:21, Loris Medici wrote:

> Actually I was planning to post the result but I ruined the print
> in the
> last (Schmincke Ruby Red - single pigment; Quinacridone Red PV19)  
> layer
> -> the paint doesn't like to dissolve much - grrrr. Are there
> watercolor
> paints (in tubes) that make gum insoluble without exposure?