C/04 Clear Glossy Ash Glaze Base #17

Ash Berhens 17
Frit 3134 30
Frit 3110 30
Custer feldspar 8
Ball clay 15

Na2O 0.29 Al2O3 0.19 SiO2 2.00
K2O 0.05 B2O3 0.25 P2O5 0.02
MgO 0.02 TiO2 0.01
CaO 0.63 Fe2O3 0.01

Alumina:Silica ratio is 1.00:10.52
Neutral:Acid ratio is 1.00:4.64
Alk:Neut:Acid ratio is 1.00:0.44:2.04

Expansion: 92.3 x 10e-7 per degree C
Oxides causing abnormal expansion: B2O3