myTechnical Documents
Hydrophilic fumed silica. Used in sealants.
Details
CAS
945-52-5 112 ;7631-86-9
Recommended for
Applications
Producer
Supplier
Chemical Composition
Hydrophilic Fumed Silica
Advantages
- Improved reinforcing properties and thixotropy of room temperature vulcanizing silicone sealants
- Improved reinforcing properties of HTV-silicone rubber
Other Applications
Sealants
RTV-1K-silicone sealants
HTV-silicone rubber
Storage
We recommend to store the product in closed containers under dry conditions and to protect the material from volatile substances. AEROSIL® 150 should be used within 2 years after production.
Technical data
| Quantity | Value | Unit | Comment |
|---|---|---|---|
| Physical Properties | |||
| Particle size | 14 | nm | Average |
| Tap density | 0.05 | g/cm3 | |
| Surface Area | 135 - 165 | m²/g | BET |
| SiO2 | >99 | % | based on ignited material |
| pH | 3.7 - 4.5 | in 4% dispersion | |
| Thermal Properties | |||
| Loss on ignition | <1.0 | % | 2hours at 1000°C based on material dried for 2 hours at 105° |
| Chemical Properties | |||
| Loss on drying | <1.5 | % | 2hours at 105°C |