| CAS No.: | 7631-86-9 |
|---|---|
| EINECS: | 000-00-0 |
| Classification: | Silicon Dioxide |
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Hydrophobic Fumed Silica IOTA HB4620
Alias:Hydrophobic Fumed Silica used in Unsaturated Polyester Resins
HB4620 is hydrophobic fumed silica which is produced by HL4200 after chemical post-treatment with HMDS (Hexamethyldisilazane).
|
Specification |
IOTA HB4620 |
|
Specific sunface area(BET), m2/g |
170 |
|
pH value in 4% dispersion |
5.5~8.0 |
|
Loss on drying(2 hours at 105ºC), % |
≤0.5 |
|
Loss on ignition(2 hours at 1000ºC based on material dried for 2 hours at 105ºC), % |
≤4.0 |
|
Sieve Residue(45μm), mg/kg |
- |
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Silica Content(Based on ignited material), % |
≥99.8 |
|
Tamped Density(Based on material dried at 105ºC for 2 hours), g/dm² |
40~60 |
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Carbon Content (Based on material dried at 105ºC for 2 hours), % |
1.5~2.5 |
Properties
Reinforcing filler for elastomer
High hydrophobicity and stable thixotropy
Anti-settling, anti-sagging agent in coatings and printing ink
Free flow aid and anti-caking aid for powders
Rheological control for adhesives and sealants
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