Imagine how grit is transferred on to paintwork when washing a dirty car with a cloth or sponge. Even after intensive rinsing, a sponge is often full of acute, sharp edged grit granules. We reduce the risk by preparing all cars with a high high pressure prewash before going through the machine. Once inside, the car is rinsed again and covered a neutral cleaning chemical by the foam arch before the soft textile brushes come into contact. All the brushes are constantly spinning so grit has a much lower chance to stick. In some cases, it used to be safer to get your vehicle washed by hand, however technology has evolved and brushes are now much safer than they used to be. Most vehicle manufacturers now recommend using drive-through car washes where they use the much softer textile brushes.