ThermaSand is identified as an inert, dust resistant, subangular, lightweight, thermally stable, clean green, smokeless sand with high porosity, making it a fetcher rich, high grade foundry and metal casting sand with no free silica. The elevated alumina content makes ThermaSand harder and stronger than silica sand, when used for setting of metal casting moulds it significantly minimises defects.
Silica sand, is the world’s most widely used sand with a +/- 70% market share. However, advances in medical science has identified silica dust, known as “respirable particles”, as the cause of silicosis, an incurable an sometimes deadly lung disease. Government, industry and environmentalist have placed regulations, restrictions and management controls over all aspects of silica sand use, with some applications being banned.