Re: a propos of gelatine

Judy Seigel (jseigel@panix.com)
Wed, 15 May 1996 17:08:50 -0400 (EDT)

Exploration of Liquid Light continues underground here in Greenwich
Village USA. Ig is about to put some images on glass, but we need some
help. Instructions from manufacturer say use gelatine as subbing
solution. Two problems (and the "expert" at the company can't be reached on
the phone -- so far):

1. It says use 1 teaspoon of gelatine to a pint (500 cc) of water. This
is surely an error, because that's 4 grams, or less than 1% solution,
which doesn't do anything, doesn't even set when cold. I figure at least a
3% solution, but can someone say for sure?

2. For each ounce of gelatine solution, instructions are to add 10 drops
of a hardener bought separately for $2 per ounce. Since large amounts of
gelatine are required to dunk big items, and since I have a jar of the
stuff in question (Chromium potassium sulfate, or chrome alum) it would be
a significant saving to mix our own. But we haven't a clue about the %
solution. I'd guess saturated, or nearly so, but.......?

I'm hoping Sandy King will know the above, but ask all gelatin mavens for
info, suggestions, advice.

Thanks 100% solution,

Judy