What is B’nas-sand

B’nas-sand is a general-purpose abrasive used for sandblasting. B’nas-sand is produced through particle size control of slag produced when creating ferro-nickel particles. As a synthetic aggregate with a consistent crystalline structure that comes about through smelting at high temperatures, it is quite non-toxic to the environment – a general-purpose environmentally-friendly abrasive material.


■ Hardness comparison with main natural minerals
Silica sandB'nas-sandGarnetAlgritDiamond
Mohs' hardness79101215
Knoop hardness


Properties as a sandblasting material

  In general, the grinding performance of an abrasive material improves in proportion to its hardness and specific gravity. The use of garnet results in major improvements to work efficiency due to its high hardness and specific gravity, which are properties of this mineral. One major point on usage is that the particles do not have sharp angles, so even when they are projected at the base material, it will not be finely ground, and it will produce almost no dust. This not only provides control over contamination of the nearby environment, but it also makes it possible to ensure the physical safety of sandblasting operators. Additionally, because garnet is a natural mineral, free silica contains no heavy metals to begin with, so waste disposal after use is simple.


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