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Treatment; 09 Nov 1993; Dismantle, clean. Reconstruct and fill chip.; Ceramics & Glass

Reason: Permanent Exhibition
Description: Stained cracks and breaks poulticed with Ariel automatic (anionic and non ionic synthetic surfactants,sodium tripolyphosphate) mixed with tap water applied on cotton wool swabs. Swabs replaced periodically over 3 days and object rinsed thoroughly. Stains still evident so Hydrogen Peroxide applied on cotton wool swabs, covered with cling film for 12 hours. Stains much reduced. Object soaked in clean tap water for 24 hours and left to dry for a week. Small fragment had by this time loosened and come out. Fragment bonded in place with Paraloid B72 (ethyl methacrylate copolymer). Small chip filled with Hxtal NYL-1 (epoxy) mixed as above and Aerosil R5805 (fumed silica) with Winsor and Newton fine dry artist's pigments (comp. variable).
Details: Treatment