Key Selling Points
Ultra-High Purity: SiO2 content ≥99%, ultra-low impurities (Fe, Al <0.01%), meets stringent industry standards.
Precise Particle Size Control: D50 1-25μm (customizable), narrow distribution, excellent flowability.
Superior Performance: High-temperature resistant (1600°C+), low thermal expansion, high insulation (volume resistivity >1015Ω·cm).
Eco-Friendly Process: Purified from high-purity quartz sand + vapor-phase synthesis, free of heavy metals.
Technical Specifications
| Parameter | Value | Test Standard |
| Purity (SiO2) | ≥99% | GB/T 14506-2010 |
| Whiteness | ≥92% | ISO 2470 |
| Moisture | ≤0.5% | GB/T 6284-2016 |
| Loss on Ignition | ≤0.3% (1000°C, 2h) | GB/T 27974-2011 |
| Item | Unit | Typical Values |
| Exterior | / | white powder |
| Density | kg/m³ | 2.65 ×103 |
| Moh's hardness | / | 7 |
| Coefficient of linear expansion | 1/k | 14×10-6 |
| Pyroconductivity | w/k.m | 12.6 |
| Refraction coefficient | / | 1.54 |
Applications
Electronics Packaging: IC substrates, epoxy molding compounds-reduces CTE, enhances thermal dissipation.
Advanced Ceramics: Reinforcing phase for high-frequency/structural ceramics-improves densification. Coatings: Functional filler for weather-resistant/anti-corrosion coatings-boosts scratch resistance.
Adhesives: Reinforcing agent for silicone rubber-enhances mechanical strength & heat resistance.
Why Choose Us?
Direct Factory: 2,000-ton/year capacity, OEM/ODM supported.
Strict QC: Laser particle analyzer + ICP-MS testing, COA provided per batch.
Fast Response: 24/7 technical support, samples shipped within 48 hours.
Logistics: Partnered with DHL/FedEx, EXW/FOB/CIF terms available.
Packaging & Storage
Standard: 25kg/bag (moisture-proof aluminum pouch + drum), 1kg sample pack optional.
Storage: Dry & cool environment, separate from acids/alkalis.
FAQ
Q: Can you provide customized particle size grades?
A: Yes, e.g., D97 10μm/15μm/20μm.
Q: What's the MOQ?
A: 100kg for standard grades; 1kg samples available.
Q: Delivery time?
A: 7-15 working days (custom orders).
Contact Now: Click "Request for Quotation" for a tailored quote & free technical solution!
