Removal of soluble nylon from terracotta

I am attempting to remove or reduce a soluble nylon coating from
unglazed terracotta, and would appreciate any advice on how this
might be done. I have found little of practical help in the
literature, and have tried several materials and methods to no
avail, including a methanol gel. The coating has saturated the clay,
appearing darker where applied, without creating much gloss or film
thickness.

Tony Sigel
Conservator of Objects and Sculpture
Straus Center for Conservation
Harvard University Art Museums
32 Quincy Street
Cambridge, MA 02138
617-496-1903
Fax: 495-0322


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                  Conservation DistList Instance 21:12
                 Distributed: Wednesday, June 20, 2007
                       Message Id: cdl-21-12-014
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