High-Purity Industrial-Grade Crystalline Silica Micro Powder

Product Overview
High-purity industrial-grade crystalline silica micro-powder is a functional powder material characterized by ultra-high purity and fine particle size. It is refined from high-purity quartz sand through specialized processes, offering exceptional chemical stability, high melting point, low thermal expansion coefficient, and superior electrical insulation properties. Widely used in electronic encapsulation, precision casting, high-end coatings, composite materials, and refractory applications.

Product Features

• High Purity: SiO2 content ≥90% with extremely low impurities

• Ultra-Fine Particle Size: D50 adjustable between 0.5-50μm, customizable grading available

• Excellent Thermal Stability: Withstands temperatures exceeding 1600°C with low thermal expansion

• High Insulation: Volume resistivity >10¹4 Ω·cm, ideal for electronic-grade applications

• Chemical Inertness: Resistant to acid/alkali corrosion and oxidation

Typical Applications
Electronic Encapsulation: Filler for epoxy/silicone molding compounds to enhance performance
Precision Casting: Improves surface finish of castings and reduces metal penetration
High-End Coatings: Boosts wear resistance, weather resistance, and UV protection
Composite Materials: Reinforcement modifier for ceramics, plastics, and rubber
Refractories: Enhances thermal shock resistance and mechanical strength of refractory products

Basic Parameters