PARTIAL REPLACEMENT OF REMOVED WOOD MATERIAL FROM POLYCHROME SCULPTURES WITH PLASTIC SHELL
The subject of preservating operations discussed by the author consisted in the polychrome St. Ann statue from Szczytna Śląska the wood material of which has been almost entirely destroyed by lignicole insects. The polychrome surface was secured by glueing on й the threefold layer of gauze placed on a bed prepared from the stearin-paraffin m ix ture. Then the decayed wood material was removed from the statue’s interior so that only quite thin layer of it has been left immediately underneath the polychrome paint coat and in turn saturated with 5 per cent solution of acetal polyvinyl acetate. The interior of statue has been lined with the layer of preparation and lime wood dust mixed together in 50 to 50 per cent proportion. For the third time the same medium has been applied in 5 per cent solution for glueing of the glass fibre fabric strips with which the statue’s interior was lined. It deserves to be pointed out that all the above three operations are fully reversible. To reinforce the whole the interior was lined with plates formed of the putty consisting of „Epidian 5” mixed with lime wood dust which in case of need may be easily removed owing to the presence of spacings especially left between them. The protective gauze layer has been removed mechanically from polychrome surfaces and, finally, the whole cleansed thoroughly with light petrol.
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