Metal pre-polish
Before the finishing step of the polishing process the surfaces have to be prepared. Therefore a pre-polishing step is used, for which high cutting compounds are used. A combination of high cutting and good polishing results, which can be achieved with Almatis aluminas can save time and money in the following finishing step.
Hard
Alumina with top cut of 150 µm for very heavy cutting compounds.
Ground alumina with top cut of 45 µm / 325 mesh for cutting compounds.
Alumina with top cut of 200 µm for very heavy cutting compounds.
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.
Medium
Unground alumina with top cut of 150 µm for heavy cutting compounds.
Ground alumina with top cut of 125 µm.
Ground alumina with top cut of 63 µm mainly used in brake pads.
Ground Alumina with special controlled top cut at 45 µm / 325 mesh for cutting compounds.
Hybrid Aluminas
Special polishing alumina with a very tight controlled top cut of <20µm for high end finishing applications.
Soft
Alumina with SSA of 4 m²/g and top cut of 200 µm for high cutting compounds.
Alumina with top cut of 125 µm produced in Germany for high cutting compounds.