Cone 4 Satinée/Texturée

Frit 3134 23
Gerstley borate 23
Barium carbonate 10
EPK 13
Kaolin (Calc.) 11
Silica 20
Total 100

Na2O 0.18 Al2O3 0.30 SiO2 2.43
K2O 0.00 B2O3 0.57 P2O5 0.00
MgO 0.07 TiO2 0.00
CaO 0.58 Fe2O3 0.00
BaO 0.17

Alumina:Silica ratio is 1.00:8.06
Neutral:Acid ratio is 1.00:2.79
Alk:Neut:Acid ratio is 1.00:0.87:2.44

Expansion: 73.0 x 10e-7 per degree C
Oxides causing abnormal expansion: B2O3