Microcrystalline wax and marble

I was wondering if any conservators have much experience or
knowledge on the use of microcrystalline wax as a protective coating
on *external* marble sculpture.  Does anyone know about its
longevity, does it deteriorate to the detriment of the marble, does
it discolour under UV light?  Are there any other commonly used
methods to protect external marble from weathering, biological
attack and/or graffiti?

If anyone knows of any papers on the subject or has experience
themselves, I would be most grateful.

Berenice Humphreys
Cliveden Conservation Workshop Ltd
Home Farm
Ammerdown Estate
Kilmersdon
Bath BA3 5SN
+44 1761 420300
Fax: +44 1761 420400


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                  Conservation DistList Instance 17:42
                 Distributed: Friday, November 14, 2003
                       Message Id: cdl-17-42-028
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