Matsumi provides abrasive materials tailored to customer needs.

Commonly known as "Alundum," our A fine powder is a cornerstone of synthetic abrasives. It is composed of corundum crystals with an Al2O3 purity of 90% or higher, synthesized by melting bauxite in an electric arc furnace at temperatures exceeding 2000°C.

A key technical feature is the solid solution of a small percentage of titanium within the alumina structure, specifically engineered to enhance toughness and fracture resistance. Boasting the highest toughness among all alumina micro-powders, the A series is meticulously crushed and classified to ensure a precise particle size distribution.

This results in superior grinding efficiency and consistently scratch-free polished surfaces.The A series is the optimal choice for precision grinding wheels, coated abrasives, and the precision lapping of various glass materials and soft metals. Its unmatched durability makes it an essential material for demanding industrial finishing processes.