C/04 Quintessence Ash Glaze Base #2

Frit 3134 26.5
Frit 3110 26.5
Custer feldspar 3
EPK 26
Ash Berhens 14
Gerstley borate 4

Na2O 0.29 Al2O3 0.32 SiO2 2.05
K2O 0.04 B 2O3 0.29 P2O5 0.02
MgO 0.03 TiO2 0.01
CaO 0.64 Fe2O3 0.01

Alumina:Silica ratio is 1.00:6.39
Neutral:Acid ratio is 1.00:3.42
Alk:Neut:Acid ratio is 1.00:0.61:2.08

Expansion: 87.9 x 10e-7 per degree C
Oxides causing abnormal expansion: B2O3