Blasting is the act of an abrasive grit being forced through a pressure or suction blast system to impinge a surface of a substrate. The blasting process is done for a variety of reasons such as; stripping of an old coating, profiling prior to adding a coating for better adhesion, or cleaning a surface. General surface preparation is performed on substrates including stainless steel, steel, aluminum, copper, brass, marble, granite, and many more.