[NHCOLL-L:440] RE: Archival stamp pad inks

[Kathie Hodge]

Thanks for the tips on archival black ink.  We'll go with Phillip's 
Process Corp.'s black actinic ink, which is apparently a very 
long-lived magnesium dioxide formulation (will survive a nuclear 
blast!).  It's available through University Products, as Carol 
Brynjolfson pointed out.

No really good archival reds seem to be available; we've had 
significant fading of red inks used in the past 50 years, even when 
stored in darkness.  Phillip's (in Rochester, NY) will make an ochre 
or a yellow titanium-based archival ink.  And interestingly, they 
also make (or used to) an archival invisible ink.  Perfect for all 
your secret projects!

thanks for your suggestions,
Kathie T. Hodge
Assistant Professor of Mycology
Dept. of Plant Pathology, and
L.H. Bailey Hortorium
401 Plant Science Bldg.
Cornell University
Ithaca, NY 14853

phone: 607-255-5356
fax: 607-255-4471
email: kh11 at cornell.edu