Reid Harvey on wed 2 dec 98
Reid Harvey
Ceramiques d'Afrique d'Abidjan
la Cote d'Ivoire
Cher Artiste de l'Argile,
I have received a request to send Seger Cone Formulas from ^022 upto
^08a. Here are alternate ^s, from FGlazes for the Self Reliant Potter
(^022 not included. It contains lead):
^020
Na2O 0.5, CaO 0.25, MgO 0.25
Al2O3 0.04
SiO2 1.08, B2O3 1.0
^018
Na2O 0.5, CaO 0.25, MgO 0.25
Al2O3 0.13
SiO2 1.26, B2O3 1.0
^016
Na2O 0.5, CaO 0.25, MgO 0.25
Al2O3 0.31
SiO2 1.61, B2O3 1.0
^014a
Na2O 0.385, CaO 0.385, MgO 0.230
Al2O3 0.34
SiO2 1.92, B2O3 0.77
^012a
Na2O 0.345, CaO 0.341, MgO 0.314
Al2O3 0.365
SiO2 2.04, B2O3 0.68
^010a
Na2O 0.338, K2O 0.011, CaO 0.338, MgO 0.313
Al2O3 0.423
SiO2 2.626, B2O3 0.675
END
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