Marker for PEG

Currently, ArchaeoSpecialists is carrying out experiments in
impregnating wood with PEG. To determine the extent of impregnation,
we would like to "mark" the PEG (4000) solution to make the PEG
easily recognized within the object after treatment (after
cross-section). I can imagine that this has been done before. Does
anyone have experience with the use of markers for this purpose?
What type did you use and why? tia,

ArchaeoSpecialists
Nijverheidsweg Noord 114
3812 PN Amersfoort
The Netherlands
+33 299 83 13
Fax: +33 299 81 89


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                  Conservation DistList Instance 20:38
                Distributed: Wednesday, February 7, 2007
                       Message Id: cdl-20-38-021
                                  ***