Polyethylene foam

I have been looking at sources for ethafoam / cellofoam in rolls for
lining drawers.  There seem to be very few suppliers and the most
prominent (University Products) charges as much to ship a roll as to
purchase one.  Our purchasing department has found much more
reasonable local sources for polypropylene foam sheets (same basic
conformation but not in rolls--slightly less convenient).  This
polymer is stiffer and has the (perhaps not very likely?) potential
to degrade to nasty by-products, viz formaldehyde.  Is there any
firm consensus on the superiority of the polyethylene foam?  Does
anyone know of a reasonable source for delivered ethafoam other than
UP?

Curt Moyer
Conservator
Dept of Anthropology
College of William and Mary


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                  Conservation DistList Instance 26:38
                 Distributed: Sunday, February 17, 2013
                       Message Id: cdl-26-38-020
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