Pemco Frit P-930 M.P./°F 1500 Silica/Alumina ratio: 21.7:1 Equivalent Molecular Weight: 300.585 Molecular Formula of Pemco Frit P-930: Na2O 0.209 Al2O3 0.121 SiO2 2.617 CaO 0.289 B2O3 0.667 ZrO2 0.029 SrO 0.502 Percentage Analysis 52.30 % SiO2 4.10 % Al2O3 4.30 % Na2O 5.40 % CaO 17.31 % SrO 15.40 % B2O3 1.20 % ZrO2 _____________________ 100 % TOTAL Comments: 6.8 x 10-6 coefficient of thermal expansion (50-450° C) I.F.P. °C = 675 Melting Range °F = 1500-1600