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Re: Damage to photos from PVC chemicals



PVC should never be used for storage of archival materials.  Normally, PVC
is a hard, brittle plastic and is softened, or made pliable, by adding
plasticizers.  These plasticizers migrate into other materials that are in
contact with PVC. This results in forming a bond between the PVC and
materials such as photo emulsions.  I'm afraid that there is no easy way to
separate PVC and photographic materials without damaging the emulsion.  Some
of the newer PVCs have more stable plasticizers, but it would be prudent to
stay away from the combination.

If anyone on the list has had any successful experiences in dealing with
this problem, I would like
to know how it was done.

Robert A. Kundrot, Ph.D.
Principal
RAK Consulting
7087 Aster Street
Springfield, OR 97478
(541) 744-0762
kundrot@rio.com

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