Although solvents and water-based solutions are both effective, they have different methods of cleaning.
Solvents dissolve the contaminant present on the surface.
Water-based cleaners emulsify or break down the contaminant, allowing it to be rinsed away with water. In order for a water-based cleaner to work properly, some form of agitation is required. Agitation can be achieved through re-circulation, spraying, ultrasonic, brushing or wiping. Most hand washing applications connected to parts washing can be successfully accomplished in aqueous solution. There are vast differences in water-based cleaners.