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I have learned that this is a soapy kind of liquid used as a final
rinse/wash in the black and white developing process, that it's safe to use
I learned from Heidi that the kind of marbling I'm doing is "western" (as
opposed to Japanese Suminagashi which floats the inks on water) because I'm
using carageenen (methocellulose) to float the inks, and the photoflo would
not be a good substitute for the ox gall. The ox gall "does 2 things.
First it is a surfactant - a surface active ingredient that enables the
[ink] to resist the surface tension of the bath and thus to float. Second,
the fatty ox gall surrounds each color so it can't blend with another color
resulting in a third color."(from Heidi)
Heidi also recommended "Marbling...a Complete Guide..." by Diane Vogel
Maurer and Paul Maurer, isbn # 0-517-02019 as very comprehensive. I'm
doing the marbling with the whole school, staff included, for our year long
scrapbooking project. We're having a ball, but going through the materials
like crazy, as everyone loves marbling.
Thanks again to all who replied.
Cathy in Ellington