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http://dx.doi.org/10.12654/JCS.2021.37.2.05

A Study on the Application of Filler to the Bark of Wooden Sculpture  

Kim, Young Mok (Department of Conservation and Art Bank, National Museum of Modern and Contemporary Art)
Kwon, Hee Hong (Department of Conservation and Art Bank, National Museum of Modern and Contemporary Art)
Kim, Soo Chul (Department of Conservation Science, Korea National University of Culture Heritage)
Publication Information
Journal of Conservation Science / v.37, no.2, 2021 , pp. 135-143 More about this Journal
Abstract
Conservation treatment that involved filling the lifting parts of wooden cultural heritage is carried out by obtaining wood or wood powder of the same species and mixing it with synthetic resin or natural glue to charge the blank area. Various concentrations and mixing ratios of adhesives and additives are used, depending on the type and condition of the target. Accordingly, in this study, we determined the conditions of the filler suitable for conservation treatment of wooden sculptures with lifted or separated bark in the National Museum of Modern and Contemporary Art. The optimal filler conditions for each adhesive were selected based on drying speed, shrinkage and expansion rates, and physical deformation degree. Then, to verify their actual applicability, these fillers were applied to wood and exposed to high-humidity environment and their cross-sections were observed. The fillers showed stable application in the following order: animal glue, PVAc adhesive, acrylic adhesive. In conclusion, a 1:2 mixture of animal glue and wood powder is a suitable filler for conservation treatment of wooden sculpture with lifted bark. The results of this study suggest appropriate ways to stabilize the bark that was lifted or separated from a wooden sculpture, thus enabling the future conservation treatment of the artworks under similar conditions.
Keywords
Bark; Wooden sculpture; Filler; Animal glue; Acrylic adhesive; PVAc adhesive;
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