This product is manufactured from high-purity quartz sand through arc melting, ultra-fine grinding, and precision classification processes. With an ultra-high purity of 99%+ and customizable particle size distribution (D50 0.5μm-50μm), it exhibits excellent thermal stability, low expansion coefficient, and chemical inertness, making it an ideal functional filler for high-end ceramics, electronic packaging, and specialty coatings.
This product is manufactured from high-purity quartz sand through arc melting, ultra-fine grinding, and precision classification processes. With an ultra-high purity of 99%+ and customizable particle size distribution (D50 0.5μm-50μm), it exhibits excellent thermal stability, low expansion coefficient, and chemical inertness, making it an ideal functional filler for high-end ceramics, electronic packaging, and specialty coatings.
Key Specifications
Parameter
Technical Data
SiO2 Purity
≥99% (measured 99.2%-99.8%)
Particle Size (D50)
0.5μm-50μm (custom grading available)
Whiteness
≥92% (ISO brightness standard)
Mohs Hardness
7
Thermal Expansion Coefficient
0.54×10-6/ºC (20-1000ºC)
Dielectric Constant
3.8 (at 1MHz)
Product Advantages
Precision Classification Technology - Dual-process air flow + centrifugal classification ensures narrow particle size distribution. Low Metal Residue - Full ceramic production line with Fe2O3 content <50ppm. Surface Modifiable - Optional silane coupling agent coating. Batch Consistency - Laser particle size analyzer testing per batch, CV <3%.
Coating Industry → Wear-resistant enhancer for anti-corrosion coatings → Optical coating diffuser
Packaging & Storage
Standard Packaging: 25kg/bag (PE-lined) Custom Packaging: Available in ton bags or vacuum packaging upon request. Storage Recommendation: Keep in a cool, dry environment to prevent moisture absorption.
Quality Control Inspection Report: COA provided upon request.
Service Support
Free samples available (from 100g) Technical support team for formulation optimization OEM particle size customization and surface treatment services
Product Overview
This product is manufactured from high-purity quartz sand through arc melting, ultra-fine grinding, and precision classification processes. With an ultra-high purity of 99%+ and customizable particle size distribution (D50 0.5μm-50μm), it exhibits excellent thermal stability, low expansion coefficient, and chemical inertness, making it an ideal functional filler for high-end ceramics, electronic packaging, and specialty coatings.
Key Specifications
Parameter
Technical Data
SiO2 Purity
≥99% (measured 99.2%-99.8%)
Particle Size (D50)
0.5μm-50μm (custom grading available)
Whiteness
≥92% (ISO brightness standard)
Mohs Hardness
7
Thermal Expansion Coefficient
0.54×10-6/ºC (20-1000ºC)
Dielectric Constant
3.8 (at 1MHz)
Product Advantages
Precision Classification Technology - Dual-process air flow + centrifugal classification ensures narrow particle size distribution. Low Metal Residue - Full ceramic production line with Fe2O3 content <50ppm. Surface Modifiable - Optional silane coupling agent coating. Batch Consistency - Laser particle size analyzer testing per batch, CV <3%.
Coating Industry → Wear-resistant enhancer for anti-corrosion coatings → Optical coating diffuser
Packaging & Storage
Standard Packaging: 25kg/bag (PE-lined) Custom Packaging: Available in ton bags or vacuum packaging upon request. Storage Recommendation: Keep in a cool, dry environment to prevent moisture absorption.
Quality Control Inspection Report: COA provided upon request.
Service Support
Free samples available (from 100g) Technical support team for formulation optimization OEM particle size customization and surface treatment services
