From: Christina Z. Anderson (zphoto@montana.net)
Date: 04/30/02-09:15:28 PM Z
Sandy King (or anyone else in the know), a while back you said you
usually use chrome alum for hardener, sometimes potassium alum, too. You
mentioned mixing 2 g of chrome alum (the purple stuff) per 1000 ml of
gelatin solution. This is about 1/2 tsp. How much *gelatin* do you use in
your 1000 ml--my formula calls for 2 tsp Knox gelatin, does yours, too?
I'm starting to work with tiles and glass to get liquid emulsion to
stick, and a student wants to try to sub glass with the chrome alum solution
for gum; she tried it already with varnish and a mild sanding and the gum
totally came off. She was inspired by my telling her a while back about
Sarah Van Keuren's students doing gum on glass. Short of a sandblaster,
we're going to keep trying.
Chris
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