Silica 17
Frit 3134 33
EPK 15
Kaolin (calc.) 13
Whiting 22
Total 100
Na2O 0.14 Al2O3 0.26 SiO2 1.90
K2O 0.00 B2O3 0.28 P2O5 0.00
MgO 0.00 TiO2 0.00
CaO 0.86 Fe2O3 0.00
Alumina:Silica ratio is 1.00:7.28
Neutral:Acid ratio is 1.00:3.55
Alk:Neut:Acid ratio is 1.00:0.54:1.91
Expansion: 77.7 x 10e-7 per degree C
Oxides causing abnormal expansion: B2O3
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