The garnet for sandblasting proposed by Techma is composed of almandite granules, one of the hardest and toughest known mineral.
It is a mineral belonging to granites with chemical formula Fe3Al2(SiO4)3.
It proves to be chemically inert, with no free silica and no toxic metals, and therefore guarantees a safe working environment as well as reduced disposal costs compared to other cheaper abrasives for sandblasting.
Being free from ferrite, it is particularly indicated for sandblasting of stainless steel, non-ferrous metals, glass, marbles, etc. as well as cleaning façades of buildings.
It is characterized by high toughness and hardness (7.5 / 8.0Mohs ), good specific weight (4.1kg/dm³ ), and low collapsability.
Thanks to a low consumption, high productivity and the possibility to be used more times, all that allows sandblasting at limited costs.
Low collapsability (it can be recycled from 4 t 7 times) and its hygroscopicity make the garnet for sandblasting particularly suitable both for hydro-jet cleaning at high pressure (1000bar / 15000psi) and above all for hydro-cut (cut with water at pressure of 2700bar / 40000psi) of structural steel and natural stone slabs.