Who is correct in the application process after sanding a body surface to bare metal?

In the process of preparing a body surface to bare metal after sanding, the correct application process typically involves ensuring that the surface is clean and free of any debris, dust, or contaminants. This often includes using a cleaner or solvent designed for automotive surfaces, along with appropriate pre-treatment methods, such as applying a rust inhibitor if necessary.

Technician B's approach aligns with these essential steps by recommending proper cleaning and surface preparation techniques after sanding. By emphasizing the importance of this preparation, Technician B's method leads to better adhesion of primers and paints, resulting in a smoother finish and increased durability of the paint job.

On the other hand, Technician A may have overlooked key steps or suggested inadequate methods that could compromise the final results. By recognizing the critical nature of surface preparation as outlined by Technician B, it's evident why this approach is the correct one in the context of automotive body work.