
High Purity Alumina Powder for Fine Polishing, Refractory,
High purity alumina has the characteristics of uniform particle size, easy dispersion and stable chemical properties. It can be widely used in the polishing of optical lenses, prisms, fused quartz glass, heat-resistant glass and the production of common abrasives.
Product Introduction
All of our High White Aluminum Hydroxide Filler, 25BSP Aluminum Hydroxide, Activated Alumina For Fluorine Removal has reached the premium standard, with well-designed craftsmanship and stable performance. While pursuing development, we attach great importance to product quality and brand building, and the coordinated development of environment and economy, creating value for customers and fulfilling social responsibilities. Make sure you genuinely feel free to send us your requirements and we are going to respond for you as soon as possible. We are very willing to strengthen exchanges and cooperation with outstanding companies in the industry and develop together in the new economic situation. We always adhere to the principle of fairness and mutual benefit in the process of dealing with customers from different countries.
Product Introduction:
The main factors that determine the quality of calcined high purity alumina for polishing are the particle size distribution and the shape and appearance of the primary crystals. The maximum particle size determines the polishing accuracy of the polishing powder, while the average particle size determines the polishing rate of the polishing powder.
The particle morphology of high purity alumina micronized powder affects the roughness of polished surface and polishing defects. The particles with smooth surface are not easy to scratch, and the polished surface has a high finish; the particles with sharp edges and corners are easy to scratch. Calcined high-purity alumina for polishing is in α phase, the main component is α-Al2O3, and also contains dispersant, suspending agent, lubricant, emulsifier and other auxiliary components.
High purity alumina polishing powder is mainly used in automobile paint polishing, glass polishing, sapphire material polishing, optical lens polishing ceramic polishing, machinery and electrical parts and other industries that need surface treatment.
Product specification:
| Specification | AM-HA-P-02 | AM-HA-P-05 | AM-HA-P-2 | AM-HA-P-3 | AM-HA-P-03 | AM-HA-PF-23 | |
| Al2O3 | ≥99.99 | ≥99.9 | ≥99.9 | ≥99.9 | ≥99.9 | ≥99 | |
| D50 (µm) | 0.2-0.5 | 0.2-0.5 | 2-3 | 2-3 | 5-6 | 2-3 | |
| Primary Crystal Size (µm) | 0.1-0.3 | 0.1-0.3 | 0.1-0.5 | 0.1-0.5 | 0.2-0.4 | 0.8-1.2(Flaky) | |
| Chemical Composition (ppm) ICP | Ca | ≤2 | ≤50 | ≤2 | ≤2 | ≤2 | --- |
| Na | ≤40 | ≤500 | ≤300 | ≤300 | ≤500 | ≤1000 | |
| Fe | ≤20 | ≤100 | ≤80 | ≤50 | ≤70 | ≤300 | |
| Cu | ≤2 | ≤10 | ≤10 | ≤10 | ≤10 | --- | |
| Mg | ≤2 | ≤20 | ≤20 | ≤20 | ≤10 | --- | |
| Si | ≤20 | ≤50 | ≤80 | ≤60 | ≤70 | ≤300 | |
| Cutting Power | ---- | ---- | Strong | Strong | Strong | Strong | |
Company Condition:
AVANT is dedicated to high-end customers,to create the most perfect, the most convenient, the most professional supply platform.
AVANT Adhering to the customer service philosophy that the product quality is 100% qualified and the customer is 100% satisfied.
AVANT is willing to look for and find distributors and agents who has the same values.
We sincerely look forward to cooperating with you!

Our Packing:
We can normally use various materials and sizes of packaging, such as kraft bags and PP woven bags. We will choose the exposure specifications according to the customer's production and feeding requirements, the common ones are 20kg, 25kg, 50kg, 1mt. You can choose to ship the goods with pallets or bulk ship, using wooden pallets or plastic pallets, etc.
We always follow efficient management and strict production standards and therefore produce first-class quality High Purity Alumina Powder for Fine Polishing, Refractory,. We maintain the win-win principle, and have been enhancing the quality of products through the technological innovation of products and the scientific management of companies for many years. With strong technical strength and advanced production equipment, and SMS people purposefully, professional, dedicated spirit of enterprise.
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