What is the primary purpose of sanding in autobody repair?

Sanding in autobody repair serves multiple crucial functions that are essential for a successful paint job. The primary purpose is to smooth the surface, which helps in preparing it for painting. A smooth surface ensures better adhesion of the paint, which leads to a more uniform and visually appealing finish. Additionally, sanding removes old paint and imperfections, such as scratches, dents, or rust, which could compromise the integrity and aesthetics of the new paint.

Furthermore, sanding helps create a texture that promotes adhesion for the base coat, helping the paint to properly bond to the substrate. By addressing all these elements, sanding becomes a comprehensive preparatory step that enhances the overall quality and durability of the paintwork. Ultimately, the correct answer encompasses both of these essential aspects of sanding in autobody repair.