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Calcined Alumina for Polishing

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Product Description

CALCINED ALUMINA FOR POLISHING

The crystal morphology of the product is a round piece and particle distribution is narrow, which both are under strictly controlled. Moreover, it is not easy to be scratched and is suitable for fine polishing. It is with high hardness value (mohs value is 9), good suspension stability and excellent polishing performance.

Application: It can be used as skeletal material for polishing paste and polishing solution. It also can be used for polishing of materials, such as semiconductor materials like monocrystalline silicon piece; polishing of optical glass like kinescope glass shell, computer hard disc, optical lens; polishing of finishing materials and superior stones and metals.

Specifications:

Grade	Al2O3 %	SiO2 %	Fe2O3 %	Na2O %	Density (g/cm3)	Particle size (um)	Usage
ALP-01	≥ 99.2	≤ 0.2	≤ 0.05	≤ 0.4	≥ 3.90	0.1-0.3	Super fine polishing
ALP-02	≥ 99.2	≤ 0.2	≤ 0.05	≤ 0.3	≥ 3.92	1-2	Fine polishing
ALP-03	≥ 99.2	≤ 0.2	≤ 0.05	≤ 0.3	≥ 3.94	2-3	Semi polishing
ALP-04	≥ 99.5	≤ 0.2	≤ 0.05	≤ 0.1	≥ 3.96	3-5	Rough polishing

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