
2000-grit sandpaper will leave scratches on the car paint, thus damaging it. Below is an introduction to car scratch-related content: DIY car paint polishing: Using sandpaper to polish car paint by yourself requires highly professional skills. It is relatively common to have scratches on the car body paint, most of which are left during car washing. These scratches mainly occur on the clear coat layer. If you want to remove these scratches, polishing alone is sufficient. Composition of car body paint: The car body paint consists of four layers, from the inside out: the electrophoretic layer, the middle coat layer, the base coat layer, and the clear coat layer. The clear coat is the outermost layer of car paint, which protects the base coat and enhances its glossiness. Minor scratches usually remain on the clear coat layer, while more severe scrapes may damage the base coat layer.


