Which mechanical removal method uses abrasive paper to remove light corrosion not deeply pitted into metal?

Which mechanical removal method uses abrasive paper to remove light corrosion not deeply pitted into metal?

• A. Buffing
• B. Grinding
• C. Sanding
• D. Polishing

Answer: (C)

Light surface corrosion that isn’t deeply pitted is most effectively removed with sanding. Sanding uses abrasive paper (sandpaper) to gently abrade the surface, taking off a thin layer of rust or oxide and smoothing out minor irregularities. By choosing the right grit, you can control how much material you remove, starting with a medium grit to remove the corrosion and finishing with a finer grit to prepare a smooth, paint-ready surface. This approach is more controlled than grinding (which is quite aggressive and can gouge) and more practical for removing light corrosion than polishing or buffing (which aim for shine rather than material removal). After sanding, you typically proceed with priming or coating to protect the metal.

Light surface corrosion that isn’t deeply pitted is most effectively removed with sanding. Sanding uses abrasive paper (sandpaper) to gently abrade the surface, taking off a thin layer of rust or oxide and smoothing out minor irregularities. By choosing the right grit, you can control how much material you remove, starting with a medium grit to remove the corrosion and finishing with a finer grit to prepare a smooth, paint-ready surface. This approach is more controlled than grinding (which is quite aggressive and can gouge) and more practical for removing light corrosion than polishing or buffing (which aim for shine rather than material removal). After sanding, you typically proceed with priming or coating to protect the metal.