What is the purpose of masking?

• A. To protect areas from overspray or damage
• B. To improve paint adhesion
• C. To remove rust
• D. To increase surface roughness

Answer: (A)

Masking is used to protect areas from overspray or damage during painting. By applying masking tape, masking paper, or plastic film to parts that shouldn’t be painted—such as windows, trim, moldings, lights, and seals—you create clean, crisp paint edges and prevent unwanted paint from reaching those areas. Proper masking keeps the finish looking professional and avoids cosmetic issues like paint on rubber gaskets or stained glass.

This concept isn’t about improving adhesion, removing rust, or altering the surface texture. Adhesion depends on proper surface preparation, cleaning, priming, and correct curing, while rust removal and roughness are handled by rust treatment and sanding or abrading the surface, respectively. In short, masking’s purpose is to control where paint goes and to protect non-target areas during the refinishing process.