Delrin

I was wondering if anyone on the DistList has had any experience,
positive or negative, with using Delrin (acetal homopolymer) in
close proximity with museum objects.  I've conducted Oddy tests on
Delrin, which seem to indicate that delrin is suitable for permanent
use, but there is some concern over information within the MSDS for
Delrin that indicates, in the presence of strong acids and bases,
and under extreme temperature (above 230 degrees C), Delrin will
emit formaldehyde.

Will Jeffers
Collections Care Specialist
Department of Scientific Research
Museum of Fine Arts, Boston


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                  Conservation DistList Instance 13:36
               Distributed: Wednesday, December 22, 1999
                       Message Id: cdl-13-36-005
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