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-203 is hydrophobic fumed silica which is produced by HC-200 after chemical post-treatment with HMDS (Hexamethyldisilazane). 

Properties: 
 Rheology & Thixotropy control
 Reinforcement
 Improvement of Free Flow
 Antisagging & Antisettling
 hydrophobic feature
 Free flow aid and anti-caking 

Characteristic physico-chemical data 

Application:
  Silicon rubber, Elastomers, SLR                                                 
  Powder Coatings
  Coating and Printing ink, toner
  Adhesives and Sealants

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.