320 Grit Sanding Discs: Ultra-Fine Prep for a Professional Finish

320 grit sanding discs are designed for ultra-fine finishing, ensuring your surfaces are flawless before applying final coats. Included in the 5-Inch 8-Hole Sanding Discs, Hook & Loop, Assorted Grit (50-Pack), they excel at refining surfaces to the smoothest possible texture.

Why 320 Grit is the Finishing Touch

This grit is fine enough to eliminate micro-scratches left behind by 220 grit while keeping just enough texture for coatings to bond effectively. It’s ideal for projects where appearance and smoothness are top priorities.

Best Uses for 320 Grit

• Final Prep Before Finish: Perfect for wood prior to stain, lacquer, or varnish.
• Between Coats: Scuffs painted or clear-coated surfaces for strong adhesion.
• Automotive Clear Coats: Smooths out imperfections before polishing.
• Detail Work: Excellent for trim, molding, and high-end cabinetry.

Tools & Setup

• 320 Grit Sanding Disc from the 50-Pack
• Random orbital sander with hook & loop pad
• Dust collection or vacuum system
• Protective eyewear and dust mask

Step-by-Step: Using 320 Grit

1. Sand to 220 Grit First: Establish a fine, even base.
2. Attach the Disc: Align with the 8-hole dust collection pattern.
3. Use Gentle Pressure: Allow the abrasive to refine without polishing too hard.
4. Sand Evenly: Work in overlapping passes for uniform smoothness.
5. Clean Thoroughly: Remove all dust before applying finish coats.

Pro Tips

• Bright lighting helps identify tiny imperfections.
• Always sand with the grain to minimize swirl marks.
• Change discs as soon as efficiency drops for consistent results.

Common Mistakes

• Skipping 320 Grit: Can leave micro-scratches visible under glossy finishes.
• Using for Rough Removal: Not suited for heavy sanding tasks.
• Over-Sanding: May overly polish the surface, weakening finish adhesion.

FAQs

• Is 320 grit good for final sanding? Yes, it’s excellent for final finish prep.
• Can it be used on metal? Yes, for ultra-smooth preparation before painting or polishing.
• Is it good for between coats? Absolutely, it ensures adhesion without leaving scratches.

Watch 320 Grit in Action

For ultra-smooth results and a flawless finish, 320 grit sanding discs are essential. Stock the 5-Inch 8-Hole Sanding Discs (50-Pack) and bring professional-level smoothness to every project.