How to use white corundum in coating production?
First,white is white corundum?
White corundum was made from the high quality alumina by melting above 2000 in the electric arc furnace and cooling. It is white with the main crystal phase α-Al2O3.
Secondly,the futures of white corundum.
-high purtiy:99.5% Al2O3
-High Hardness:Mohs 9.0,higher than brown corundum.
-high concentrated PSD(Particle Size Distribution)
On base of the above characteristics of white corundum,it is used widely in coating field.then how is it used in coating filed?
Generally speaking,the coating adding white corundum as additives must add it in standard procession.and the added amount should be 2-5% of total coating.at the same time,before adding white corundum,sufficient stirring and mixturing is necessary,to make sure white corundum can distribute uniformly in coating.
In a Word,white corundum has been improving the coating performance of hardness,wear-resistance,adhesion and gloss of coating,which really has great value on coating.
