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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).
Katamtaman
1 day
Mga Tagubilin
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.
Mga materyales para sa hakbang na ito:
Kapirasong feldspar167 g
Buhangin ng Kuwarso108 gMga kailangang kasangkapan:
Almires at Panghalo
Bistay na Pinong Lambat2
2
Weigh the batch
Weigh the batch
Weigh in grams: feldspar 167, whiting 70, kaolin 52, flint 108.
Mga materyales para sa hakbang na ito:
Calcium carbonate (puting tisa)70 g
Pulbos na luwad na kaolin52 gMga kailangang kasangkapan:
Timbangang panimbang3
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.
Mga materyales para sa hakbang na ito:
Tubig250 mlMga kailangang kasangkapan:
Almires at Panghalo4
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.
Mga kailangang kasangkapan:
Bistay na Pinong Lambat
Balde5
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.
Mga kailangang kasangkapan:
BaldeMga Materyales
5- 167 gPlaceholder
- 108 gPlaceholder
- Placeholder
- Placeholder
- 250 mlPlaceholder
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