On Wed, 14 Jul 2004, Robert wrote:
> ... I usual coat enough paper for two
> weeks of work, no yellowing from the glyoxal.
I found that when the glyoxal-hardened gelatin yellowed, it took longer
than two weeks... maybe a month or more. I'm wondering if you'd see
yellowing if you kept the paper longer before using it.
Judy
Received on Wed Jul 14 22:02:17 2004
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