Fumed Silica

Characteristic: It is a white and colloidal micro-particle with its primary micro-particle from 5-40 nm and has obvious properties such as thixotropy, reinforcing, thickening and filling etc. and is insoluble in all kinds of solvents and liquids except hydrofluoric acid and concentrated bases.If applied as good dispersant in coating, it improves the suspension stability and processing performance of coatings . Overseas, it has been plentifully in cosmetics, agricultural seed protective agent, pharmaceutical carrier and top coat of high-grade car. It has been applied in polishing agent of electronic PCB in developed countries, also with great application amount in ROK, Japan and Taiwan in Asia.

Specification:ItemIndexSS-100SS-130SS-150SS-200SS-250SS-300SS-380SS-450ApparentWhite solid colloidal micro-particleSpecific surface,m2/g100+/- 15130+/- 15150+/- 15200+/- 25250+/- 25300+/- 30380+/- 30450+/- 30PH value3.6~4.33.6~4.33.6~4.33.6~4.33.6~4.33.6~4.33.6~4.33.6~4.3Heating loss weight, %(m/m)≤1.5 1.0 1.0 2.0 2.0 2.0 2.5 2.5 Burning loss weight, %(m/m)≤1.0 1.0 1.0 2.0 2.0 2.0 2.0 2.0 Apparent density, g/l30~6030~6030~6030~6030~6030~6030~6030~60mP.s100~200100~200200-500500-1000700~1500700~15001000-20001000~2000

Uses:It is used widely in silicon rubber, construction sealant, coating, electron and electric, aerospace, medicine and medical material, resin processing, printing ink, pesticide and other industries.SS-100~150: Used widely in silicone acid rubber, sulfurized silicone rubber at ambient Temperature.(low moisture content ), silicone neutrl rubber.SS-200~300: Used mainly in sulphurized silicon rubber at high temperature, organic silicon defoaming agent, high oil ink, power coating, powdered of flake preparation, cosmetics and so on.SS-380~450: Used mainly in high transparent and tear resistance silicon rubber, silicon ester, enclosed materials for capacitors and so on.

Packing:Packed with a multi-layer paper plastic compound bag with net weight of 5kg,10kg, or packed by whole plastic-seal for users having special demand on moisture content. Store and Transport:Placed in a vent and dry storehouse and prevented form humid, water, pressure and throwing during transport.

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