Flush Sanding Inlay Bindings & Purflings on Guitars

Bindings and purflings add strength and beauty to guitars, but sanding them flush with the body is a delicate process. Over-sanding risks cutting through thin decorative strips, while under-sanding leaves proud edges that catch the hand and spoil the finish. This guide explains how to flush sand bindings and purflings seamlessly.

Why Flush Sanding Matters

Bindings protect the edges of guitars and purflings enhance visual detail. Uneven sanding creates ridges or gaps that ruin the smooth flow of the instrument. Proper sanding ensures both comfort and a professional appearance.

Tools You’ll Need

• Small sanding blocks or radius blocks
• Wet/dry sandpaper sheets (150–400 grit)
• Masking tape to protect adjacent wood
• Scrapers for controlled removal
• Vacuum and tack cloth

Best Grit Sequence for Bindings

• 150 grit: For initial leveling of proud binding or purfling edges.
• 220 grit: Refines joints and blends decorative strips.
• 400 grit: Leaves a smooth, finish-ready surface.

Step-by-Step: Sanding Bindings & Purflings

1. Mask the top and back. Apply masking tape along the wood to prevent scratches.
2. Level carefully. Use 150 grit (50-pack) on a small block to bring bindings flush with the guitar body.
3. Blend smoothly. Switch to 220 grit (100-pack) to refine transitions and remove sanding scratches.
4. Final pass. Use 400 grit (25-pack) for a clean, smooth finish ready for sealing.
5. Inspect under raking light. Ensure bindings and purflings are perfectly flush before applying finish.

Special Cases

Plastic bindings require slower sanding to avoid melting. For abalone or shell purflings, wet sanding with fine grits prevents chipping and heat damage. Always check progress often to avoid sanding through thin strips.

Pro Tips

• Sand with light, even pressure—bindings are thinner than they look.
• Use scrapers for controlled removal before switching to sandpaper.
• Check corners and curves carefully—they’re easy to over-sand.

Aftercare

• Seal early: Apply a wash coat of sealer to lock in bindings and purflings.
• Protect edges: Handle carefully until the finish is fully applied.
• Maintain gently: During refinishing, use only light scuff sanding with 400 grit.

FAQs

• Can I use power sanders? Not recommended—hand sanding offers better control and safety.
• Do I sand bindings before or after finishing? Always flush sand before applying finish.
• What if I sand through? Replace or patch the binding—repairs are difficult once material is removed.

Watch & Learn

Flush sanding guitar bindings and purflings requires patience and precision. By using the right grit sequence and sanding carefully, you’ll achieve clean edges that enhance both comfort and visual appeal.