... dioxide) QS-L Series Application: High-grade transparent, rubber product, coating,printing,ink Fumed silica (SiO2,silicon dioxide) QS-L seriesApplication: Silicon Rubber ... .05TiO2 Contentm/m %≤ 0.03Fe2O3 Contentm/m%≤ 0.003Application High-grade transparent rubber products , coating, printing ink . Fumed silica (SiO2,silicon dioxide)