35A.Ferro Frit 3481 Mol Wt: 293.1 Fusion temp: Molecular Formula: K2O 0.037 Al2O3 0.201 SiO2 2.432 Na2O 0.146 B2O3 0.261 CaO 0.517 Pbo 0.299 Percentage Analysis: 49.9 % SiO2 7.0 % Al2O3 1.2 % K2O 3.1 % Na2O 9.9 % CaO 22.8 % PbO 6.2 % B2O3 Comments: Calcium / lead borosilicate frit; similar frits - Hommel 403