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Clear Porcelain Glaze: Feldspar, Whiting, Kaolin and Flint, Binns 1910
Charles Binns's simplest porcelain glaze (The Potter's Craft, 1910): feldspar 167, whiting 70, kaolin 52 and flint 108 parts, ground fine with water. It fires clear and bright on porcelain at cone 10 to 12 in a reducing fire, and Binns says the same glaze also serves for stoneware.
The picture: a Korean porcelain bottle under clear glaze, Joseon dynasty, c. 1400–1500 (Asian Art Museum, San Francisco; photo by Daderot, Wikimedia Commons, public domain).
中级
1 day
说明
1
1
Powder the feldspar and flint
Powder the feldspar and flint
Pound the feldspar and the quartz sand to powder in the mortar and sift it through the fine sieve. Flint here means silica: Binns uses ground quartz or flint.
此步骤所需材料：
长石块167 克
石英砂108 克所需工具：
研钵与研杵
细目筛2
2
Weigh the batch
Weigh the batch
Weigh in grams: feldspar 167, whiting 70, kaolin 52, flint 108.
此步骤所需材料：
碳酸钙（白垩粉）70 克
高岭土粉52 克所需工具：
等臂天平3
3
Grind with water
Grind with water
Grind the batch with half a pint of water. Binns grinds about an hour in a ball mill; by hand in a mortar works too, with fine sieves.
此步骤所需材料：
水250 毫升所需工具：
研钵与研杵4
4
Sieve and settle
Sieve and settle
Rinse everything out with plenty of water and keep the washings. Strain through a 120-mesh sieve, let it settle, and pour off the clear water.
所需工具：
细目筛
水桶5
5
Thick as cream
Thick as cream
Use it as thick as cream: a dipped finger comes out with a white coat that will not shake off.
所需工具：
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