Which procedure removes small dirt particles from the paint before final polishing?

Which procedure removes small dirt particles from the paint before final polishing?

• A. Buffing
• B. Denibbing
• C. Wet sanding
• D. Guide coat

Answer: (B)

This is about preparing a freshly painted surface by removing tiny dirt particles that can mar the final finish. Those small raised specks, often called nibs, sit on the paint and would show up after polishing if not removed. The proper step is denibbing, which uses a very fine abrasive with water and light pressure to skim off or flatten those nibs without cutting deeply into the paint. This leaves a smooth, uniform surface that’s ready for the final polish to achieve a flawless shine. Buffing is the final polishing stage itself, used to bring out gloss and remove light scratches after the surface is clean and smooth. Wet sanding is a broader smoothing method that can level surface imperfections, but it’s not the specific nib-removal step. A guide coat is a marker layer sprayed over a surface to reveal sanding work during leveling, not for removing dirt particles before polishing.

This is about preparing a freshly painted surface by removing tiny dirt particles that can mar the final finish. Those small raised specks, often called nibs, sit on the paint and would show up after polishing if not removed. The proper step is denibbing, which uses a very fine abrasive with water and light pressure to skim off or flatten those nibs without cutting deeply into the paint. This leaves a smooth, uniform surface that’s ready for the final polish to achieve a flawless shine.

Buffing is the final polishing stage itself, used to bring out gloss and remove light scratches after the surface is clean and smooth. Wet sanding is a broader smoothing method that can level surface imperfections, but it’s not the specific nib-removal step. A guide coat is a marker layer sprayed over a surface to reveal sanding work during leveling, not for removing dirt particles before polishing.