Pemco Frit P-318 M.P./°F 1650 Equivalent Molecular Weight: 366.022 Molecular Formula of Pemco Frit P-318: BaO 1.000 B2O3 1.049 SiO2 2.328 Percentage Analysis 38.20 % SiO2 41.90 % BaO 19.90 % B2O3 _____________________ 100 % TOTAL Comments: 7.0 x 10-6 coefficient of thermal expansion (50-450° C) I.F.P. °C = 650 Melting Range °F = 1650-1800