Alumina for polishing

In the polishing industry, the application of high purity alumina polishing mainly for the hardware industry and gem and precision glass industry.

Hardware industry, such as automotive polishing, requires high cutting force and high whiteness of alumina, and the purity of alumina is not as high as that of the gem industry.

In this industry, alumina is used as raw material to make polishing wax for polishing.

In the gem industry, polishing is mostly divided into three steps: rough casting, medium casting and fine casting. High-purity alumina is the material for fine casting.

This industry demand for polished alumina purity requirements, at least more than 99.95%.

Now most enterprises will be high purity alumina with polishing fluid to use.

At present, high-end polished alumina is still a monopoly of Japanese enterprises, higher prices.

The domestic polishing alumina is not very mature at present, the high-end field is not stable enough, polishing market has a great prospect.