U of S | Mailing List Archive | alt-photo-process-l | Re: Hardening With Glyoxal: One Shot?

Re: Hardening With Glyoxal: One Shot?

On Mon, 07 May 2007 18:30:51 -0500, "Gary Nored" <gnored@centurytel.net>

> In my experience the gelatin loses its 'vital essence' after a couple of 
> heatings and doesn't work the same anymore :(

I keep my prepared sizing in a refrigerator, and take the portion I use
and heat it up. I don't go through heat cycles more than necessary.

However, I think gelatin's mechanical and chemical property  is a lot
more easily degraded by bacterial growth rather than a few extra cycles
of heating.