RE: Hardening With Glyoxal: One Shot?
Indeed, I had to throw away the vessel which I put the gelatine + hardener solution when I tried to get it out of the the fridge and reuse :) I couldn't struggle to scrape it - buying a new vessel was easer :) Regards, Loris. -----Original Message----- From: Don Bryant [mailto:dsbryant@bellsouth.net] Sent: Monday, May 07, 2007 8:55 AM To: alt-photo-process-l@usask.ca Subject: RE: Hardening With Glyoxal: One Shot? Michael, Nope! Once the gelatin cools and hardens the mix cannot be re-used. Chris Anderson notes on page 44 of her book 'Alternative Processes Condensed', that Kerik Kouklis adds 6 drops of formalin to 10 ml of size to cover a 14x17 area. Perhaps this would work with glyoxal also, though I'm not clear how Kerik is able to mix the hardener uniformly in such a small volume of gelatin. Don Bryant -----Original Message----- From: Michael Koch-Schulte [mailto:mkochsch@shaw.ca] Sent: Monday, May 07, 2007 2:31 AM To: alt-photo-process-l@sask.usask.ca Subject: Hardening With Glyoxal: One Shot? I'm mixing small batches (100 ml) of 3 per cent Knox with 2.5 mls of Glyoxal (oh, and a splash of rye whiskey for bubbles) for sizing paper with a sponge brush. Can I reuse this mixture by simply reheating in the microwave after it cools and gels overnight? Is there a shelf life? Thx.
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