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. 

HCSIL 204 is a white fluffy powder of high purity, with a specific surface area of 230 m²/g,treated with Octamethylcyclotetrasiloxane (D4).

Properties: 
 Rheology & Thixotropy control
 Reinforcement
 Improvement of Free Flow
 Antisagging & Antisettling
 Thickening

Characteristic physico-chemical data 
Application:
  Silicon rubber
  Coating and toner
  Adhesives and Sealants
  Greases and cable gel
  Vinyl Ester Resins
  Thermoplastics

Packing and storage
lPackaged in multiple layer Kraft paper, 10kg per bag
lStored in aeration-drying storage areas for protecting the material from volatile substance.
lShould be used within 2 years after production.
Transportation
l20'GP: 1.8 Mt, 10 pallets, 180KG/pallet.
l40'HQ: 4.0 Mt, 20 pallets, 200KG/pallet.