Description
Sinter Grit Sintered or Calcined Bauxite A angular grit abrasives made from bauxite, a clay – like ore of hydrated aluminium oxide, are often used as alternatives to aluminium oxide because they are cheaper. The abrasive is produced by heat-treating natural bauxite without melting and fusing it (as in the manufacture of aluminium oxide
Sintergrit is also used in a blasting cabinet as it is a recyclable abrasive. For optimum results using a psi of 60 will ensure the longevity of the sintergrit therefore providing an equal alternative to aluminium oxide.
The reasoning for this is because the sinter grit despite having similar hardness to aluminium oxide, its friability is less. It therefore breaks down easier then brown aluminium oxide but less so then white aluminium oxide.
Blasting at a lower PSI will therefore combat this and ensure longer durability to recycle as an alternative to aluminium oxide.
Sinter grit has a no free irons and does not react with water.
Example – Sinter grit can be used on metals to remove mill scale, rust and paint. It can also be used to shot blast stone, aluminium and stainless steel.
