Product description
HB4151 is hydrophobic fumed silica which is produced by HL4150 after chemical post-treatment with DDS(Dimethyldichlorosilane).
Specification |
IOTA HB4151 |
Specific sunface area(BET), ㎡/g |
115±15 |
pH value in 4% dispersion |
3.7~4.5 |
Loss on drying(2 hours at 105℃), % |
≤0.7 |
Loss on ignition(2 hours at 1000℃ based on material dried for 2 hours at 105℃), % |
≤2.5 |
Sieve Residue(45μm), mg/kg |
- |
Silica Content(Based on ignited material), % |
≥99.8 |
Tamped Density(Based on material dried at 105℃ for 2 hours), g/dm² |
40~60 |
Carbon Content (Based on material dried at 105℃ for 2 hours), % |
0.6~1.2 |
Applications
RTV silicone rubber,especially RTV-T
Adhesives & Sealants
Coatings & Printing ink
Powder Coating
Properties
Thixotropy and reinforcement in RTV silicone sealants, the hydrophobic feature gives RTV silicone sealants a long shelf-life
Rheology control in adhesives
Anti-settling, anti-sagging and thixotropy control
Free flow aid and anti-caking aid for powders
Package
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