PT. Grains Indonesia Aluminium Oxide
AA white crystalline powder, alumina is obtained by calcining aluminum hydroxide. Although there are many variations of alumina crystals, the one that is the most stable and accordingly most widely used is α-alumina. It has a high melting point, is thermally stable, and ranks next to silicon carbide, boron carbide and diamond in hardness. Moreover, it has high electric resistance and is stable against acids and alkalis. α-alumina consequently serves in broad range of application, including refractories, insulators, spark plugs, IC boards and packages, grinding and polishing materials, and heat and chemical resistant porcelains. Available are different types of alumina, each having its α-ultimate crystal size and particle size distribution and its impurities content controlled to meet the particular requirements of such applications. PT GRAINS INDONESIA provides in standard-sized and fine-sized of normal soda and low soda alumina with soda content, ultimate crystal size, shape and size distribution adjusted in production diverse customer requirements.
❖ Unground & Ground Grades – Normal Soda
❖ Unground & Ground Grades – Low Soda
❖ Super Fine Reactive Alumina
❖ Polishing Alumina
❖ Conduction & Insulation Alumina
