opaque frit TC-24 Suitable for double-firing high quality in-door wall tiles.Very clear stamp result.Smooth and good flatness and luminance. COE:190(×10-7/) Softening Point:750 Firing Temperature:1060-1120 We are Zibo Tiancheng Glaze Co., Ltd. produce transparent frit,opaque frit,lusterpowder,printing glaze powder,as one of the largest producers and exporters in Shandong province,our products were exported to many countries and build good business relations.