What is wet sanding?

• A. Sanding with water to reduce dust and scratches
• B. Dry sanding
• C. Sanding with wax
• D. Sanding with oil

Answer: (A)

Wet sanding means sanding the surface with water (or another lubricant) as you work. The water keeps dust from flying around, carries away debris, and cools the surface so the abrasive doesn’t overheat or dig into the finish. This combination helps the abrasive glide smoothly, reduces the risk of creating new scratches, and leaves a smoother, more uniform surface that’s ready for polishing. In auto refinishing, it’s a common step after leveling and before final buffing, helping to remove fine imperfections like orange peel or runs without causing dust buildup or heat damage. Dry sanding, by contrast, uses no liquid and creates a lot of airborne dust, which can clog the paper and burn the surface. Sanding with wax or with oil isn’t the standard wet sanding technique for prepping a painted finish; wax is a finishing product, and oil isn’t used as the primary lubricant for this step.