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Subject: Deterioration of plastic

Deterioration of plastic

From: Suzanne Kitto <suzanne.kitto>
Date: Friday, December 7, 2001
We have a number of revolvers in our collection dating from 1950s
that have deteriorating plastic grips.  According to the
manufacturers the grips are Bakelite but I have never seen Bakelite
deteriorate in this manner.  The grips have in places a white bloom
which in areas has formed small white compact crystals. On some of
the grips the plastic has laminated and cracked.  All the grips are
giving out a strong unpleasant odour which can only be described as
smelling of excrement.  My feeling is that the smell maybe from a
degrading oil.  I would be grateful for any ideas on what could be
happening or if any one else has come across anything similar.

Suzanne Kitto
Royal Armouries
Leeds, UK

                  Conservation DistList Instance 15:42
                 Distributed: Friday, December 7, 2001
                       Message Id: cdl-15-42-010
Received on Friday, 7 December, 2001

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