How to Sand Drywall Mud with 240 Grit Sandpaper Sheets

Drywall mud, also known as joint compound, is essential for covering seams, screw holes, and imperfections on walls and ceilings. To achieve a flawless painted finish, sanding is required. eQualle 240 grit sandpaper sheets (9x11 in, Wet or Dry) are perfect for the final sanding of drywall mud before priming.

Why 240 Grit for Drywall Mud?

240 grit is a fine abrasive that smooths dried joint compound without scratching or gouging the drywall paper. It leaves the surface ready for primer and paint, ensuring that patched areas blend seamlessly with the surrounding wall.

Tools You’ll Need

• eQualle 240 Grit Sandpaper sheets (9x11 in, Wet or Dry)
• Sanding block or pole sander
• Dust mask and safety goggles
• Work light to reveal imperfections
• Vacuum with brush attachment

Step-by-Step: Sanding Drywall Mud

1. Inspect the surface. Make sure the joint compound is completely dry.
2. Sand with 240 grit. Use 240 grit (25-pack) sheets in smooth, overlapping strokes to refine the surface.
3. Feather the edges. Blend compound smoothly into the wall for seamless results.
4. Check with a light. Shine a light across the wall to catch imperfections.
5. Clean up. Vacuum and wipe with a tack cloth before priming.

Special Cases

For heavier ridges or uneven spots, start with 180 grit, then refine with 240 grit. For ceilings, use a pole sander to maintain control and avoid swirl marks.

Pro Tips

• Sand gently—too much pressure can damage drywall paper.
• Replace sheets as soon as they clog with compound dust.
• Work in broad strokes rather than focusing on small areas.
• Prime immediately after sanding to seal the surface.

Aftercare

• Lightly sand primer with 220–240 grit before painting for a smooth finish.
• Store unused sandpaper flat and dry.
• Dispose of used sheets properly once clogged.

FAQs

• Is 240 grit too fine for drywall mud? No—it’s the recommended final grit before priming.
• Can I skip sanding and just paint? No—unsanded mud will remain visible under paint.
• Do I need to sand between coats of mud? Yes—light sanding between coats ensures smoothness and adhesion.

Watch & Learn

For flawless drywall finishes, use eQualle 240 grit sandpaper sheets. Perfect for smoothing mud before priming and painting. Shop 240 grit sandpaper sheets today.