Fumed silica QS-L Series

Fumed silica (SiO2,nm grade) QS-L series Application: Silicon Rubber: Improves silicon rubbers durability, rebound rate, and anti-distortion performance. Plastics Industry: Improves plastics tenacity, strength and prevents water absorption Coating Industry: Prevents agglomeration and drip. Thixotropic additives. Increase denseness and smoothness of paint. Medicine Industry: Increase denseness ,floating , carrying function in medicine. It also can be used as the pesticide powder and anti-agglomeration. Packing: kraft paper bag Technical IndexMeasuring Units Models &Test Results QS-L150 QS-L200 BET Specific Surface Area m2/g 150±15 200±15 PH value 4.0-4.5 Ignition loss 1000oC % ≤ 1.0 Loss on Drying 105oC % ≤ 0.8 Bulk Density g/L 30-60 45μm water wash sieve residue % ≤ 0.05 C Content m/m % ≤ 0.2 SiO2 Content m/m % ≥ 99.8 Al22O3 Content m/m % ≤ 0.05 TiO2 Content m/m % ≤ 0.03 Fe2O3 Content m/m % ≤ 0.003 Application High-grade transparent rubber products , coating , printing ink .