To prepare a painted panel for refinishing, what action should be performed?

To prepare a painted panel for refinishing, what action should be performed?

• A. scuff until surface is dulled
• B. wash with water
• C. buff to a gloss
• D. apply primer

Answer: (A)

To prepare a painted panel for refinishing, you need a rough, matte surface so new primer and paint can grip properly. Scuffing the existing finish until the surface is dulled removes the shine and creates a mechanical key for adhesion. Washing helps remove dust and contaminants, but it doesn’t provide the roughness needed for bonding. Buffing to a gloss would leave a slick surface that can repel primer and paint. Applying primer is part of the refinishing process, but it comes after you’ve created the proper roughness and cleaned the panel.

To prepare a painted panel for refinishing, you need a rough, matte surface so new primer and paint can grip properly. Scuffing the existing finish until the surface is dulled removes the shine and creates a mechanical key for adhesion. Washing helps remove dust and contaminants, but it doesn’t provide the roughness needed for bonding. Buffing to a gloss would leave a slick surface that can repel primer and paint. Applying primer is part of the refinishing process, but it comes after you’ve created the proper roughness and cleaned the panel.