High Purity Fused Silica Micro Powder

Product Overview

This product is manufactured from high-purity quartz raw materials through high-temperature melting, ultra-fine grinding, and precision classification processes. It features a purity of ≥99%, controllable particle size distribution (D50 0.5μm-50μm, customizable), low thermal expansion coefficient, and excellent chemical stability. It is widely used in high-end electronic packaging, specialty ceramics, coatings, adhesives, and other fields.

Key Parameters

Product Advantages

Ultra-High Purity

• SiO₂ content ≥99%, extremely low heavy metal impurities, meeting stringent requirements for semiconductors, photovoltaics, and other demanding industries.

Precise Particle Size Control

• Multi-stage air classification technology ensures adjustable D50 range (0.5-50μm), with customized particle size distribution available upon request.

Stable Performance

• Low thermal expansion coefficient (0.5×10^-6/ºC), high-temperature resistance (softening point ≥1600ºC), and excellent insulation (volume resistivity >10¹⁶Ω·cm).

Surface Modifiable

• Optional silane coupling agent treatment to enhance compatibility with resins, rubber, and other substrates.

Typical Applications

Electronic Materials

• IC packaging materials, EMC epoxy molding compound filler

• 5G high-frequency substrates, thermal conductive silicone reinforcement filler

Specialty Ceramics

• Precision ceramic sintering aids, structural ceramic reinforcement

Coatings & Adhesives

• High-end anti-corrosion coating wear-resistant filler, rheology modifier for adhesives

Other Fields

• Optical polishing materials, 3D printing powder, cosmetic matting agent

Packaging & Storage

• Packaging: 25 kg/bag, or customized upon request

• Storage: Keep in a cool, dry place to avoid moisture absorption and caking

• Transportation: Standard logistics, pressure and moisture-proof

Quality Control

• ISO 9001 Quality Management System certified

• Batch-specific test reports provided

• Support for customized specifications

Why Choose Us

In-house fused quartz production ensures purity control at the source
Imported classification equipment for high-precision particle size control
Extensive R&D experience in silica micro powder, serving 300+ industry clients
Free sample testing and technical solution support