F8 Series Spherical Silica
Description
The F8 series is a spherical powder produced from high-purity silica through high-temperature processing. Its spherical particle structure improves flowability and viscosity behavior during filling and enhances mechanical strength and dimensional stability.
The products offer a low dielectric constant, excellent electrical insulation, high-temperature resistance and chemical stability. They are functional fillers for electronic materials, coatings, adhesives and high-performance composites.
F8-X grades are supplied without surface treatment. Surface modification is available with acrylic, alkyl, amino, epoxy, vinyl and other functional groups.
All F8 products are processed in accordance with ISO 9001 and internal quality assurance procedures.
Typical Properties
| F8-X322 | F8-X282 | F8-X247 | F8-X227 | F8-X217 | |
|---|---|---|---|---|---|
| D50 (µm) | 12.0 | 8.0 | 4.5 | 3.0 | 1.5 |
| D100 (µm) | < 45.0 | < 25.0 | < 20.0 | < 10.0 | < 5.0 |
| Refractive index | 1.46 | 1.46 | 1.46 | 1.46 | 1.46 |
| Specific gravity (g/cm3) | 2.20 | 2.20 | 2.20 | 2.20 | 2.20 |
| Hardness (Mohs) | 6 | 6 | 6 | 6 | 6 |
| H2O (%) | < 0.3 | < 0.3 | < 0.3 | < 0.3 | < 0.3 |
| pH | 4.5-6.5 | 4.5-6.5 | 4.5-6.5 | 4.5-6.5 | 4.5-6.5 |
| BET (m2/g) | 1.0 ± 1.0 | 1.0 ± 1.0 | 1.5 ± 1.0 | 2.0 ± 1.0 | 2.5 ± 1.0 |
| SiO2 (%) | > 99.6 | > 99.6 | > 99.6 | > 99.6 | > 99.6 |
| Al2O3 (%) | < 0.20 | < 0.20 | < 0.20 | < 0.40 | < 0.40 |
| Fe2O3 (%) | < 0.010 | < 0.010 | < 0.010 | < 0.015 | < 0.015 |
Application
Semiconductor packaging materials
Electronic potting compounds
Optical coatings
Wear-resistant coatings
Adhesives and high-performance composites
Packaging
F8-X322, F8-X282, F8-X247 and F8-X227: 25 kg/bag; 1,000 kg/pallet.
F8-X217: 20 kg/bag; 800 kg/pallet.
Technical Data Sheets
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