Sixth study meeting held on traditional restoration materials and synthetic resins

A presentation during the study meeting
A general discussion during the study meeting

 On Thursday, January 24, the Center for Conservation Science and Restoration Techniques held a study meeting in a seminar room at the Research Institute on the theme of deterioration and repair of paint and other coloring materials in architectural cultural properties, one subject involved in traditional restoration materials. The content of this study meeting could be described as a continuation of the third study meeting held in FY2009, on current conditions and issues in study and repair of lacquers in architectural cultural properties, and the fifth in FY2011, on study and repair of traditional paints in architectural cultural properties. Historically, paint and other coloring materials such as those on the exteriors of architectural cultural properties have been subjected to repeated repair because they are liable to material degradation and bio-degradation in Japan’s climate.
 This study meeting provided the latest information on various issues related to these matters, from the individual perspectives of conservation and restoration science (paint and coloring materials and biology), structural repair sites, and administrative guidance. First, KITANO Nobuhiko of the Technical Standard Section discussed deterioration of paint and coloring materials, and then KIGAWA Rika, head of the Biological Science Section, identified topics related mainly to insect damage at the Shrines and Temples of Nikko World Heritage Site and mold damage at Kirishima-Jingu shrine, as examples of biodegradation of materials including paints and coloring, as well as examples of responses to such damage. Next, SHIMADA Yutaka of the Cultural Properties Division in the Department of Guidance of the Kyoto Prefecture Board of Education reported on examples of repairs to the paint and coloring of Iwashimizu Hachimangu Shrine and to the paint of the Phoenix Hall of Byodoin Temple, and HARASHIMA Makoto of the technical office of Itsukushima Shrine reported on an example of repairs to the paint of the main building of Itsukushima Shrine. Lastly, TOYOKI Hiroyuki, Architecture and Other Structures Division, Agency for Cultural Affairs, described an overview of the fundamental concepts behind repairs to paint and coloring materials currently conducted by the Agency. The meeting was well received by participants, who showed high levels of interest in the content of its themes because they were directly related to repair of paint and coloring materials.

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