Traditionally vehicle wash machines have been designed in either bristle or cloth options Vehicle manufacturers moved away from lead based paint a few years ago, with the result that the paint now used is softer and is prone to show scratches and damage caused by brushes and cloths, therefore the move is away from bristle and cloth machines to touchless systems. Mines and transport companies do not use bristle or cloth option. The friction involved in washing vehicles with these machines either damages the vehicle's paint, or the vehicles damage the machine, causing costly repairs to the machine.

Bristle machines cannot clean vehicles with sharp edges, expanded metal or mesh side panels as they rip the brushes to pieces.

• Pressure, volume and velocity of water in carefully calculated ratios.
• Impact at optimum angles
• Chemical action at correct dwell times, temperatures and concentrations.
• Machine designed for the particular vehicle to be washed.