Longquan stoneware double-gourd-shaped ewer. The ewer has a fine pale grey body and opaque grey-blue glaze. Where exposed, the body is reddish. The foot rim is unglazed.
- Made in: Longquan (area)
- (Asia,China,Zhejiang (province),Longquan Area)
- Height: 141 millimetres
- Width: 132 millimetres
- Depth: 95 millimetres
Published PDF date : Southern Song 13thCRoom 95 label text:
Some of the most beautiful celadon glazes were made in the Longquan area in the Southern Song dynasty. This gourd-shaped ewer was made in the south-western part of Zhejiang province in the area around Longquan in the Ou River basin. Longquan clay is light grey but re-oxidises during the cooling process in the kiln, so that it can appear orangey-red where it is unglazed. The Longquan kilns were non-official kilns. Potters at Longquan used locally available clay and glaze materials.
Stoneware, porcelain-type, with celadon glaze
Longquan region, Zhejiang province 浙江省, 龍泉地區
Southern Song to Yuan dynasty, AD 1200–1300
8 April 2009
Reason for treatment
Remove discoloured overpaint, reassess, clean and gap fill
Evidence of old restoration to base of spout. Excess overpaint has yellowed and been applied by an airbrush. It is difficult to see how much damage underneath the overpaint. Light surface dirt.
Surface cleaned with a 50:50 solution of de-ionised water and Industrial methylated spirits (ethanol, methanol) applied on cotton wool swabs and dried with a paper towel. Removed all overpaint with Acetone (propan-1-one/dimethyl ketone) on cotton wool swabs. Overpaint was covering lots of the original surface. White plaster fill under the overpaint, removed mechanically with a scalpel. Shellac fill under the plaster fill, removed mechanically with a scalpel, softened with IMS on cotton wool swabs before mechanical removal. The Shellac had been used to adhere the spout to the main body and as a filler. Excess Shellac resin had dripped into the inside of the ewer. Steam cleaned all break edges with de-ionised water to remove ingrained dirt, dried with paper towels. The break edges of the spout had been mechanically abraded smooth. The spout did not fit exactly onto the ewer because of the abraded end. The Spout was re-adhered onto the main body with Fynebond epoxy resin which was bulked heavily with Aerosil 805 fumed silica. After curing another layer of bulked Fynebond coloured with artists' dry ground pigments was applied to fill the missing areas. The resin was cut back with a scalpel after curing and polished with Micromesh fine abrasive cloth (silicon carbide/aluminium oxide) grades 1500, 1800, 2400, 3200, 3600, 4000, 6000, 8000 and 12000. Gap fill polished with Greygate Plastic Polish. Object was further cleaned with a 50:50 solution of de-ionised water and Industrial methylated spirits (ethanol, methanol) applied on a cotton wool swab and dried with a paper towel.
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Object reference number: RRC39255
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