Aluminum is difficult to polish, as it is soft and the melting temperature is low. Too high temperatures will change the lattice structure of the aluminum, which can have impacts on further processing of the aluminum. Therefore different strategies and aluminas have to be applied. Almatis offers varius grades to fullfil the customers needs.
Alumina with top cut of 125 μm for heavy cutting compound and better pre-finishing compared to PSG 100.
Alumina with top cut of 90 μm for heavy cutting compound for good preperation of surface for the finishing process.
Ground alumina with top cut of 125 μm for cutting compounds.
Ground alumina with top cut of 40 μm for cutting compounds.
Unground alumina with top cut of 150 μm for heavy cutting compounds.
Ground Alumina with special controlled top cut at 45 μm / 325 mesh for cutting compounds.
Alumina with SSA of 4m2/g and a top cut of 90μm for high cutting compounds for metal surfaces.?
Alumina with SSA of 3,5m2/g and a top cut of 200μm for high cutting compounds as well as aluminum surfaces.