High Purity for Demanding Applications
Pure Silica Powder is an upgraded product for advanced applications. It starts with natural silica powder. Then we put it through stricter acid washing and fine grading. Compared to regular industrial products, our product shows big improvements in three areas. First, the SiO₂ content is much higher at ≥99.5%. Second, ionic impurities are very tightly controlled. Third, the particle size distribution is much more concentrated. Iron content stays below 0.05%. This level of purity meets the strict needs of electronic packaging, optical materials, and high-end coatings.
Advanced Testing for Every Batch
Our 2 dedicated labs and full set of precision instruments support the quality of Pure Silica Powder. We have conductivity meters, viscometers, and laser particle size analyzers. Every batch goes through four tests before shipping. We check purity, whiteness, particle size, and conductivity. We follow the SJ/T 10675-1995 standard for electronic materials. Our product now makes up more than 20% of our total capacity. We supply it to many well-known makers of electronic packaging materials and premium paints. Our 25 years of experience put us ahead in product quality control.
Complete Data for High-End Users
|
Parameter |
Typical Value / Range |
Test Standard |
|
Main Content (SiO₂) |
≥ 99.5% |
Chemical Analysis |
|
Whiteness |
≥ 94 |
Whiteness Meter |
|
Particle Size (D50) |
3μm - 15μm (Customizable) |
Laser Diffraction |
|
Conductivity (Water Suspension) |
≤ 10 μS/cm |
Conductivity Meter |
|
Iron Content (Fe₂O₃) |
≤ 0.05% |
Spectrophotometry |
|
Moisture Content |
≤ 0.15% |
Oven Drying Method |
|
Loss on Ignition |
≤ 0.30% |
High-Temperature Ignition |
Targeted Applications and Custom Options
Pure Silica Powder is for high-end uses that need very high purity. In electronic packaging, it is a core filler for epoxy molding compounds and chip potting compounds. Its low ion content keeps electronic devices reliable over a long time. In premium paints, it is used in aerospace and optical coatings. Its high purity and low color support clarity and weather resistance. In special ceramics and precision casting, it is also a key raw material. We can make different grades of Pure Silica Powder for your needs. The minimum order is 1 ton.
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