Basically, a dirty car is covered in particles, some stuck tightly to the surface. Rather than soaping and scrubbing, risking the chance of dragging or digging these particles into the finish of your car, foaming soap clings to the surface and helps to lift these particles off of the surface with its cleaning power. Once you rinse the foam off, there will be significantly less grit on the surface, meaning you don’t have to worry about putting scratches in while washing. Because the foam gently breaks down dirt and debris, your wash is much less abrasive and therefore scratch free. For Foam wash, we use 3M foam wash gun manufactured by Würth Company, Germany.