320 Grit Sanding Discs: The Final Step for a Flawless Finish

320 grit sanding discs are the ultimate choice for ultra-fine surface preparation and between-coat sanding. Found in the 5-Inch 8-Hole Sanding Discs, Hook & Loop, Assorted Grit (50-Pack), they deliver a silky-smooth finish that ensures topcoats go on flawlessly.

Why 320 Grit is the Finishing Touch

This grit removes the tiniest imperfections, dust nibs, or raised grain without altering the shape or profile of the workpiece. It’s perfect for creating a professional-grade surface right before the final coat, or for scuff-sanding between coats to promote adhesion.

Best Uses for 320 Grit

• Between Coats: Smooths the surface before applying the next layer of finish.
• Final Pre-Finish Sanding: Produces a silky feel on bare wood or primer.
• Detail Work: Ideal for fine edges, trim, and intricate surfaces.
• Auto Paint Prep: Scuffs surfaces for clear coat adhesion without cutting too deep.

Tools & Setup

• 320 Grit Sanding Disc from the 50-Pack
• Random orbital sander
• Dust extraction or vacuum
• Protective eyewear and dust mask

Step-by-Step: Using 320 Grit

1. Prep the Surface: Sand with 220 grit first for uniform smoothness.
2. Attach the Disc: Align the 8 holes to maximize dust removal.
3. Use Light Pressure: Let the fine abrasive glide over the surface.
4. Short, Overlapping Passes: Ensure complete coverage without over-sanding.
5. Clean Thoroughly: Vacuum and wipe with a tack cloth before applying the finish coat.

Pro Tips

• Use a fresh disc for the final sanding to avoid introducing scratches.
• Always sand with the grain on wood projects.
• Check the surface under good lighting to ensure no imperfections remain.

Common Mistakes

• Starting with 320 Grit: Not efficient for material removal—only for finishing.
• Over-Sanding: Can polish surfaces too much, reducing finish adhesion.
• Skipping This Step: Can leave a slightly rough texture under the topcoat.

FAQs

• Can I use 320 grit for wet sanding? Yes, if the discs are rated for wet/dry use.
• Is 320 grit suitable for metal? Yes, for light surface smoothing before polishing or painting.
• Should I sand between every coat? For the smoothest results, yes—especially on clear finishes.

Watch 320 Grit in Action

When perfection matters, 320 grit is the last step to get it right. Upgrade your final sanding with the 5-Inch 8-Hole Sanding Discs (50-Pack) for a surface that’s ready to impress.