Fumed Silica BFS-200
BFS-200 is a hydrophilic fumed silica with a specific surface area
of 200 m2/g .The original particle size can be 7-40 nm. It’s a kind
of high purity white colloidal powder.
Applications
Ø Paints,Coatings,Printing inks and Unsaturated polyester resins
Ø Sealants and Silicone Adhesive
Ø Elastomers, especially HTV and RTV Silicone rubber
Ø Films,Cosmetics and Heat insulator
Properties
Ø Reinforcing filler in elastomers
Ø Rheology and thixotropy control of liquid systems
Ø Used as anti-settling, thickening, anti-sagging agent
Ø Improvement of free flow and anti-caking characteristics of
powders
Ø High transparency
Specification
| Test Item | Specification | Standard |
| Specific Surface Area BET(m2/g) | 200±15 | GB/T10722 |
| pH Value in 4% dispersion | 3.7～4.5 | ISO787-9 |
| Loss on Drying 2h@ 105℃(％) | ≤1.0 | ISO3262-1 |
| Loss on Ignition 2h@ 1000℃(％) | ≤1.5 | ISO3262-1 |
| Sieve Residue(％) | ≤0.05 | ISO787-18 |
| Tamped Density(g/l) | 40～60 | ISO787-11 |
| SiO2 Content(％) | ≥99.8 | ISO3262-20 |
| Carbon Content(％) | ≤0.15 | ISO3262-20 |
Packing and storage
Ø Packaged in multiple layer kraft paper, 10kg per bag
Ø Stored in aeration-drying storage areas for protecting the
material from volatile substance.
Ø 20’GP: 1800KGS, 10 pallets, 180KG/pallet.
Ø 40’GP: 4000KGS, 20 pallets, 200KG/pallet.
Ø 40’HQ: 4400KGS, 20 pallets, 220KG/pallet.
