Also, the surface needs to be degreased.

Initially, you need to prepare the surface for restoration. In this case, you need to remove rust, chips and other dirt. Also, the surface needs to be degreased. The surface preparation can be carried out using special pastes or solutions, and having applied these solutions to the surface using the brush, you need to clean the surface from defects. After that, the surface must be washed and dried. Those places that have cracks and chips to metal, the surface must be primed and dried for 48 hours. After the time of this time, the problem area is putty (in this case, it is necessary to achieve a flat surface) and again applied the primer. To achieve good surface quality, the problem area is polished using sandpaper.