Hydrophobic Fumed Silica IOTA HB4139
HB-4139 is hydrophobic fumed silica which is produced by HL-4200 after chemical post-treatment with PMDS (Polydimethylsiloxane).
Specification | IOTA HB4139 |
Specific sunface area(BET), m2/g | 110 |
pH value in 4% dispersion | 5.5~7.5 |
Loss on drying(2 hours at 105ºC), % | ≤1.5 |
Loss on ignition(2 hours at 1000ºC based on material dried for 2 hours at 105ºC), % | ≤10.0 |
Sieve Residue(45μm), mg/kg | - |
Silica Content(Based on ignited material), % | ≥99.8 |
Tamped Density(Based on material dried at 105ºC for 2 hours), g/dm² | 40~60 |
Carbon Content (Based on material dried at 105ºC for 2 hours), % | 4.5~6.5 |
Silicone rubber
Coatings and printing ink
Adhesives and Sealants
Greases and cable gel
Unsaturated resin
Powders
Properties
Good thickening and thixotropy property
Good anti-sagging properties and excellent stability in epoxy resin
Excellent reinforcing properties in silicone rubber especially at high filler loading levels and no crepe hardening on aging
Good transparency performance
Free-flow property for water-proof material and powders
Package
White kraft paper bag, 10KG/Bag
