Fumed silica is the superfine micro-nano fine chemical product, which is divided into hydrophilic type and hydrophobic type in accordance with their different surface treatments. Its appearance is white powder. Native particle size ranges from 5nm to 40nm,with significant functions of thixotropy, reinforcing, thickening and filling. Therefore, it is widely used in the industries of rubber, sealant, plastic, resin, paint, printing ink, papermaking, medicine, cosmetics, food etc.
ITEM | UNIT | INDEX | STANDARD | |
BET specific surface area | m2/g | 220±10 | Q/(GZ)GBSOI-2002 | |
Heating loss(105ºC,2h) | % | ≤1.0 | ISO787-2 | |
Loss on ignition(1000ºC) | ≤1.5 | ISO3262-1 | ||
PH value | % | 3.9-4.5 | ISO787-9 | |
SiO2 content | % | ≥99.9 | ISO3262-20 | |
C content | % | ≤0.2 | ISO3262-20 | |
Aluminium dioxide content | Mg/kg | ≤40 | ISO3262-20 | |
Titanium dioxide content | Mg/kg | ≤20 | ISO3262-20 | |
Iron dioxide content | Mg/kg | ≤10 | ISO3262-20 | |
Sieve Residue(45um) | Mg/kg | ≤200 | ISO787-18 | |
Apparent density | g/dm2 | 40-60 | ISO787-11 | |
Particle size | D50nm | 14 | Q/(GZ)GBSOI-2002 | |
Appearance | White powder | |||
CONCLUSION | PASS | |||






- Unsaturated polyester resins, laminating resins and gel coats.
- HTV- and RTV- 2K - silicone rubber
- Adhesives and sealants
- Printing inks
- Cable compounds and cable gels
- Plant protection




(1).Q: Are you a factory or trading company?A: We are professional manufacture in construction and industrial chemical materials.
(2).Q: What's the products you produced?
A:Fumed silica,Amylase,Titanium dioxide ,HEC,HPMC,HEC,RDP...
(3).Q: Can I get a free sample?
A:Samples free(less than 200g) available.
(4).Q: Do your products stock in hand?
A: Generally we have some goods stock in hand every month,so shipping fast but it depends on your confirmed order.
(5).Q: Can you offer OEM service?
A: OEM available,can add your logo or as your requests.
(6).Q: What's your payment term?
A: TT,LC,Credit Card,Western Union,Cash,Online Transfer.etc
Erin







Audited Supplier










