Stanford Optics supplies High Whiteness Quartz Glass Powder made from high-purity silicon dioxide, boasting a whiteness level exceeding 95 and excellent hiding properties, ideal for use in high-whiteness filler systems.
Produced through grading, calcining, crushing, and grinding of high-purity silica, this quartz glass powder features fine particles that scatter and reflect light internally when densely packed, significantly reducing light transmittance. This effect results in a whiteness comparable to titanium dioxide. The powder’s color neutrality ensures it does not alter paint colors when used as a filler. Additionally, it exhibits a low dielectric constant and low dielectric loss, making it suitable for applications requiring electrical insulation and chemical stability. It is widely used as a filler in electronics and electrical components, potting materials, silicone, epoxy adhesives, sealants, rubber, plastics, and paint coatings.
Stanford Optics ensures careful handling of High Whiteness Quartz Glass Powder during storage and transportation to maintain its original quality and performance.
Physicochemical Information |
|
Average Particle Size D50 (μm) |
1-30 |
Max. Particle Size D50 (μm) |
<5, or customized |
Density |
2.2 g/cm3 |
Mohs Hardness |
6.2 |
Linear Expansion Coefficient |
0.5 1/K |
Whiteness |
≥96 |
Dielectric Constant DK |
3.8εr |
Dielectric Loss Df |
0.0002 tgδ |
Conductivity |
≤30 uS/cm |
SiO2 Purity |
99.8% |
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