320 Grit Sanding Discs: The Final Step for an Ultra-Smooth Finish

320 grit sanding discs are designed for the finishing touches, delivering a silky-smooth surface and preparing it for the final coat. Included in the 5-Inch 8-Hole Sanding Discs, Hook & Loop, Assorted Grit (50-Pack), they are perfect for fine woodworking, cabinetry, and automotive refinishing where perfection matters.

Why 320 Grit is the Finishing Expert

This grit removes micro-imperfections and dust nibs without damaging the workpiece or altering its shape. It’s the go-to choice for scuff sanding between coats or creating a flawless surface right before the last layer of finish.

Best Uses for 320 Grit

• Between Coats: Smooths surfaces to improve adhesion for the next layer.
• Final Pre-Finish Sanding: Prepares bare wood, primer, or sealer for the final coat.
• Fine Edge Work: Perfect for detailed trim and moldings.
• Automotive Paint Prep: Lightly scuffs clear coats before buffing or recoating.

Tools & Setup

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

Step-by-Step: Using 320 Grit

1. Prep the Surface: Ensure it’s already sanded to at least 220 grit for optimal results.
2. Attach the Disc: Align holes for efficient dust collection.
3. Sand with Minimal Pressure: Let the abrasive glide over the surface without forcing it.
4. Work in Overlapping Passes: Cover the entire area evenly.
5. Clean Before Coating: Vacuum and tack cloth the surface to remove all dust.

Pro Tips

• Use a fresh disc for final sanding to avoid introducing scratches.
• Always sand with the grain when working with wood.
• Good lighting helps reveal imperfections before finishing.

Common Mistakes

• Starting with 320 Grit: Not effective for material removal—only for final prep.
• Over-Sanding: Can over-polish the surface, reducing finish adhesion.
• Skipping This Step: May result in a slightly rough finish that doesn’t meet professional standards.

FAQs

• Can I wet sand with 320 grit? Yes, if using wet/dry-rated discs.
• Is 320 grit good for metal? Yes, for light surface refinement before polishing or painting.
• Do I need to sand between coats? For the smoothest results, yes—especially on clear or high-gloss finishes.

Watch 320 Grit in Action

For the final touch that makes all the difference, 320 grit is your go-to solution. Choose the 5-Inch 8-Hole Sanding Discs (50-Pack) for a consistent, flawless finish every time.