Hi:
Liquitex make a clear acrylic gesso - I assume (bad practive) that is has
no titanium whitener.
I have been playing around with sizing techniques.
Did a mix of gelatin (250 ml) and a little (20 ml) white blue, hardened
with chrome alum, rolled on with a foam roller. Seemed to give a much
smoother/cleaner surface than plain gelatin. But then the gelation coat
may simply have been poorly coated.
Gord
On Thu, 19 Jan 2006, Ryuji Suzuki wrote:
> I've tried gesso mix but one objection I had was that the acrylic
> gesso is gritty because of matting agents in the mix. Another
> objection I found is that the gesso contained titanium white and other
> things I would not want to have in my prints unless archivality is
> proven in the particular combination. Titanium white is very
> photoactive and generates a lot of radical chain reaction in the
> material when exposed to UV, and this was the main cause of problems
> in early days of RC papers. Photographic industry learned enough and
> today's products have good amount of means to prevent the problem, but
> I am not sure of gesso in sizing layer.
>
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Gordon J. Holtslander Dept. of Biology
holtsg@duke.usask.ca 112 Science Place
http://duke.usask.ca/~holtsg University of Saskatchewan
Tel (306) 966-4433 Saskatoon, Saskatchewan
Fax (306) 966-4461 Canada S7N 5E2
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Received on Thu Jan 19 17:08:46 2006
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