Allied's alumina powders are made to the highest quality specifications and are used for the final polishing of metallographic specimens. Accurately controlled purity levels and particle size distribution assure optimum polishing results. Mix with DI water to produce a liquid slurry. 0.05 particle type/shape is Gamma; 0.3 and 1.0 are Alpha. E.D.S is here to serve you, Provide you information and services for your needs.