C/04 Glossy Ash Glaze Base #12

Ash Berhens 38
Frit 3110 29
Frit 3134 18
Ball clay 15

Na2O 0.19 Al2O3 0.17 SiO2 1.41
K2O 0.04 B2O3 0.13 P2O5 0.04
MgO 0.03 TiO2 0.01
CaO 0.74 Fe2O3 0.01

Alumina:Silica ratio is 1.00:8.27
Neutral:Acid ratio is 1.00:4.94
Alk:Neut:Acid ratio is 1.00:0.30:1.47

Expansion: 96.1 x 10e-7 per degree C
Oxides causing abnormal expansion: B2O3