Blasting with water-soluble media has a number of advantages over sandblasting. When sandblasting, airborne sand particles can be inhaled by the operators, causing dangerous silicosis of the lungs. Consequently, hoods with air supply systems are required.

A particular problem arises with protecting moving parts such as bearings and seals while cleaning.  Bearings typically have a hardness of 6 Mohs, sand has a hardness of 6.9 Mohs and will damage the bearing before breaking up. As compared to bicarbonate of soda, having an average hardness of 2.8 Mohs, and will dissolve before damaging a metal part. (See the "Blast Material Hardness Chart" below)

Because we are using the media under pressure to blast off contaminants, the debris is still in a solid state. A chemical has not dissolved it; therefore the contaminant can be filtered out of the water. This filtering has been effectively used when removing hazardous waste such as lead and zinc chromate based paint, asbestos and PCB's.