The Characteristicis of 99.7%-99.8% WFA powder

99.7%-99.8% WFA powder gets 97% corundum phase in crystal. The sodium oxide content is less than 0.1%. It works in fine refractory coatings, refractory castables, ceramic shell slurry, high-end grinding tools, coatings, and spray materials.

It has the following characteristics:

1. High purity.

99.7%-99.8% WFA powder has a lower sodium content. That means that its alumina purity is higher, greater than 99.7%, and the impurity content is less. This makes it have better performance and higher reliability in applications.
2. Excellent wear resistance.

After electric melting and smelting, 99.7-99.8 white corundum crystallizes more completely, with higher hardness and wear resistance. It is more suitable for applications that require high wear resistance, such as abrasives and grinding tools.
3. Good chemical stability.

The formation process of 99.7%-99.8% white corundum powder inhibits the formation of β – Al2O3. It is mainly composed of α – Al2O3. It has good chemical stability, especially in acidic or alkaline environments, and can maintain stable performance without easily reacting with other chemical substances.
4. High temperature resistance.

99.7%-99.8% WFA powder has better high-temperature resistance, high-temperature creep resistance, and high-temperature thermal shock resistance than ordinary WFA.
5. Uniformity of Powder.

The uniformity of high purity white corundum powder not only enables better grinding flatness in grinding applications, but also enables more uniform dispersion on the substrate in spraying applications.
6. Excellent powder flowability.

99.7%-99.8% white corundum powder gets from a wet process of white fused alumina. After water washing and overflow precipitation, the dust attached to the particle surface and gaps generated during the crushing process is removed. Powder has better fluidity.
7. Cost.

Due to its high purity, high purity WFA powder is more expensive than white corundum micro powder with higher sodium content.
8. Application areas.

In addition to being used in traditional white corundum applications, 99.7%-99.8% white fused aluminum oxide powder has more advantages in the aviation blade casting, spraying industry, and fine alumina ceramic industry.
9. Available grit sizes.

The grit of 99.7%-99.8%  WFA powder include 240 #, 280 #, 320 #, 360 #, 400 #, 500 #, 600 #, 700 #, 800 #, 1000 #, 1200 #, 1500 #, 2000 #, 2500 #, 3000 #, and 4000 #.
Overall,99.7%-99.8%  WFA powder stands out in demanding industrial applications due to its high purity and excellent physical and chemical properties.