Adhesive for waterlogged wood

Amanda Clydesdale <mandyc [at] aocscot__co__uk> writes

>Can anyone recommend a reliable, reversible adhesive suitable for
>adhering waterlogged timbers that have been treated by the two-stage
>PEG method, then freeze-dried?

In the conservation lab. where I'm working (UTICA in Saint-Denis,
France), we use for little timbers (treated by the two-stage PEG
method, then freeze-dried) an adhesive adapted for leather pieces
composed of : P.V.A. (10%), Klucel G (5%), ethyl alcohol (85%)
w/w).

The Klucel G is an hydroxypropylcellulose. Firstly mix Klucel G in
alcohol and wait till it becomes a paste and then add slowly the
P.V.A.

See Morrison L. "Some suggested materials for the repair and
reconstruction of archaeological leather" in Conservation today,
1988, pp. 107-111. We suggest you Sylvia de La Baume's article :
"The organic materials" in "La Conservation en Archeologie", edited
by Marie Berducou, Masson, Paris, 1990, pp 266-268.

C. Didelot

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                  Conservation DistList Instance 13:22
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