The production process of alumina powder is getting higher and higher to produce powder of alumina below 1 micron. Nano alumina transparent liquid XZ-LY101 is colorless and: transparent. The nano alumina transparent dispersion is 5-10 nanometer alumina, and is selected by layer of deep processing, added to the aqueous liquid of various acrylic resin, polyurethane resin, polyurethane resin, melamine resin, silicone emulsion and other resin, added amount of 5% to 10%, can improve the hardness of the resin, up to 6-8H, http://www.sd-alumina.com/alumina/