Silica 11
Frit 3134 40
EPK 13
Kaolin (Calc,) 12
Custer feldspar 10
Whiting 14
Total 100
Na2O 0.19 Al2O3 0.30 SiO2 2.17
K2O 0.03 B2O3 0.36 P2O5 0.00
MgO 0.00 TiO2 0.00
CaO 0.77 Fe2O3 0.00
Alumina:Silica ratio is 1.00:7.30
Neutral:Acid ratio is 1.00:3.31
Alk:Neut:Acid ratio is 1.00:0.66:2.18
Expansion: 79.4 x 10e-7 per degree C
Oxides causing abnormal expansion: B2O3
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