C/04 Satin Ash Glaze Base #15

Ash Berhens 43
Frit 3134 23
Frit 3110 17
Ball clay 17

Na2O 0.15 Al2O3 0.17 SiO2 1.24
K2O 0.04 B2O3 0.14 P2O5 0.05
MgO 0.04 TiO2 0.01
CaO 0.78 Fe2O3 0.01

Alumina:Silica ratio is 1.00:7.12
Neutral:Acid ratio is 1.00:4.13
Alk:Neut:Acid ratio is 1.00:0.32:1.31

Expansion: 94.7 x 10e-7 per degree C
Oxides causing abnormal expansion: B2O3