High Strength · High Wear Resistance — Industry-Standard Angular Silica Filler
Angular Silica Powder is an angular inorganic filler produced by precision milling of high-purity SiO₂. It provides outstanding mechanical strength, wear resistance and excellent insulation. Supplied as fused SN-RG and crystalline SN-JG grades, it is used across broad industries — EMC, industrial coatings, adhesives, rubber reinforcement, engineered stone and electrical insulation.
Key Features
- 💎 High Strength & Wear Resistance — Angular structure maximizes mechanical properties of composites
- 🔧 Dual Grade Lineup — Choice of fused SN-RG and crystalline SN-JG
- 🧪 High-Purity SiO₂ 98.0–99.95% — Low-iron/low-alkali control ensures insulation reliability
- ⚙️ Wide PSD Range — Custom D50 from 1 to 45 µm available
- 💰 Cost-Effective — Standard filler with lower cost than spherical grades
- 🔥 Thermal Stability — Maintains properties under high-temperature processes
Technical Specifications
| Item | Value |
|---|---|
| Appearance | White angular powder |
| SiO₂ Purity | 99.0–99.95 % (SN-RG) / 98.0–99.9 % (SN-JG) |
| Shape | Angular |
| Expansion / PH (SN-RG) | 0.5×10⁻⁶ / 5–8 |
| Whiteness / Mohs (SN-JG) | 90 Min / 7 |
| Mean D50 | 1–50 µm (customizable) |
| Features | Low Na⁺/Cl⁻/E/C · low CTE · stable mechanical performance |
| Packaging | 20 kg bag · 500 kg bulk · OEM |
| Country of Origin | China |
Product Lineup
- SN-RG · SN-RG · Fused Angular Silica Powder — Fused Angular
- SN-JG · SN-JG · Crystalline Angular Silica Powder — Crystalline Angular
- SN-FP10 · SN-FP10 · High-Purity Angular Fused Silica — High-Purity Angular Fused Silica (D50 9.96 µm · SiO₂ 99.93%)
Main Applications
EMC & Encapsulant · Industrial Paints · Adhesives & Sealants · Rubber Reinforcement · Engineered Stone · Electrical Insulation
Particle size, purity, surface treatment and packaging can be customized to your specification. Contact us for samples, TDS and quotations.