The white fused aluminum oxide powder is an excellent polishing powder. It is not only for metal, iron, or stainless steel. But also works well for plastic, stone, wood, resins, etc.
The hydrophilicity of white aluminum oxide is its ability to attract water molecules. The hydrophilicity of the white aluminum oxide is very important for resin-bonded abrasive wheels.
White aluminum oxide powder is a non-slip additive to coatings.
The functional white aluminum oxide powder makes coating & paint high wear resistance, and corrosion resistance.
It is widely used for epoxy floor coating, laminated floor coating, etc.
The hardness of white fused aluminum oxide is 9.0 on the Mohs scale. And Knoop hardness of white fused aluminum oxide is 20500N/MM2. It is harder than most metal, stainless steel, and alloy parts. Therefore, it can grind most metals, iron, stainless steel, and other materials.
In China, the main resources of white fused aluminum oxide are from Henan and Shandong Province. But price from Henan WFA factories is higher than that of Shandong.
The D50 value of white aluminum oxide 4000 mesh is 3.5 microns. In some precision grinding or abrasive product industries, the daily standard particle size requirement of white aluminum oxide 3.5 micron is WFA 4000 mesh. Especially for export products, the model needs to coincide with the standard JIS size.
For plastic materials or metal profiles with fine lines on the surface, during the sandblasting process of the dry sandblasting machine, the moment the white corundum grit collides with the surface of the material will produce frictional heat. This heat will darken and darken the surface of the profile.
White aluminum oxide ultrafine powder is generally only white corundum powder with a D50 median particle size below 5um. Generally used for fine grinding and polishing. The white aluminum oxide 10000 mesh ultrafine powder (D50 value of 1 micron) is the finest non-nano-scale aluminum oxide powder, and its production process is very complicated.
In May 2022, the demand for white aluminum oxide is lower because of the covid policy. Many abrasive tools and ceramic manufacturers don’t buy as many raw materials as normal. As a result, the white aluminum oxide price did not get much support.
In the past month, there are 7 white-fused alumina manufacturers in China cut production capacity. That number is same as last month. Among the 7 factories, five are Henan WFA factories and two are Shandong factories. Henan WFA manufacturers quitting is caused by Covid lockdown in Zhengzhou city.
