In practice, Aluminum Oxide develops a "Working Mix" of grit sizes which optimizes the number of abrasive impacts on a surface – this translates into a much faster cleaning rate than can be accomplished with Silica Sand. This example conservatively assumed equal cleaning rates between the two materials.

Although amounts have not been calculated for material handling, storage, and procurement costs, these will all be higher with the greater volume of material that must be used when blasting with Silica Sand versus Aluminum Oxide.