Product Features
- Ultra-fine particle size ensures excellent surface smoothness and uniform polishing results.
- High purity Al₂O₃ ≥ 99.5% provides strong hardness and minimal impurities, preventing scratches or contamination.
- Narrow particle size distribution guarantees stable polishing efficiency and repeatable surface quality.
- Chemically inert and thermally stable—ideal for high-precision polishing and grinding applications.
- Available in different grades: micro-powder (W, F, P series) and customized particle sizes upon request.
Application Fields
- Precision polishing of optical lenses, sapphire, and quartz glass
- Lapping and fine grinding of ceramics, hard alloys, and semiconductor materials
- Surface finishing for stainless steel, aluminum parts, and electronic components
- Used in abrasive papers, polishing slurries, and grinding pastes
- As filler or coating material in advanced refractory and wear-resistant products
Technical Specifications
| Property | Value |
|---|---|
| Al₂O₃ Content | ≥ 99.5% |
| Fe₂O₃ | ≤ 0.04% |
| Na₂O | ≤ 0.35% |
| Mohs Hardness | 9.0 |
| Particle Size Range | F240–F20000 |
| Color | Pure White |
| Crystal Structure | Alpha-Alumina |
| Melting Point | 2050°C |
💬 Frequently Asked Questions
Q1: What is the main difference between white fused alumina powder and grain?
White fused alumina powder has a much finer particle size and is mainly used for polishing and precision grinding, while the grain type is used for sandblasting or surface roughening.
Q2: Can it be used in electronic component polishing?
Yes. Its high purity and non-conductive nature make it ideal for polishing semiconductors and precision parts without introducing contamination.
Q3: How is the particle size controlled?
The powder is screened and classified using advanced sieving and air-jet milling systems to ensure a narrow and consistent particle size distribution.
Q4: What packaging options are available?
Standard packing is 25 kg kraft paper bags or 1-ton jumbo bags. Moisture-proof and vacuum-sealed packaging options are available for high-purity grades.
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so good!
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good
xlabrasive@gmail.com –
I’ve been using the #6000 white fused alumina powder for fine polishing of stainless steel and carbide components, and the consistency is excellent. The particles are uniform, with no oversized grains, and the finish quality is noticeably smoother compared to other suppliers. It cuts fast but still leaves a very low surface roughness. Overall, a reliable high-end micro powder for precision work.