SWISSVAX hand polishes (Cleaner Fluid) and machine polishes (Cleaner Fluid PROFESSIONAL) differ, among other things, in their viscosity. Hand polishes are more liquid, while machine polishes are thicker. Cleaner Fluid Regular is not suitable for machine polishing. The product is too liquid and would cause too much splatter. If you want to work with a polishing machine, you should use Cleaner Fluid Professional Regular.