In our professional automobile hand washing service in Kennett Square, starting with the wheels and tires, will decontaminate using an Iron remover.  Agitating to loosen up the debris. After the wheels and tires are cleaned, if the option is chosen will then degrease the engine compartment.  These are normally the dirtiest areas of a vehicle.  After rinsing with water, the attention will then turn to the body. Working from the top down using a PH-neutral soap to minimize scratching or incorporating foam for cars that require more attention.  The soap will dwell on the car then be rinsed off leaving a semi clean surface. Moving on to an iron removing product and claying the paint if needed.  This will prepare the surface for polishing.