What is dry sanding?

What is dry sanding?

• A. Sanding with water
• B. Sanding without water
• C. Sanding with oil
• D. Sanding after waxing

Answer: (B)

Dry sanding means sanding without water. The abrasive is used dry, and dust is created that must be controlled with ventilation or a dust collection system. This approach is common when prepping surfaces like body filler or primer where you want to roughen the surface to promote adhesion. Sanding with water would be wet sanding, which uses lubrication and washes away dust for a smoother finish. Sanding with oil isn’t a standard prep practice in collision repair, as oil can contaminate the surface and interfere with adhesion. Sanding after waxing isn’t about the method itself; wax must be removed before sanding to ensure proper adhesion of primers and coatings.

Dry sanding means sanding without water. The abrasive is used dry, and dust is created that must be controlled with ventilation or a dust collection system. This approach is common when prepping surfaces like body filler or primer where you want to roughen the surface to promote adhesion.

Sanding with water would be wet sanding, which uses lubrication and washes away dust for a smoother finish. Sanding with oil isn’t a standard prep practice in collision repair, as oil can contaminate the surface and interfere with adhesion. Sanding after waxing isn’t about the method itself; wax must be removed before sanding to ensure proper adhesion of primers and coatings.