Sand Guitar Finish: Smooth Between Clear Coats

Use this grit-by-grit plan to sand between coats for smoother clear coat on a guitar body finish with silicon carbide sheets for wet or dry use. The finish depends on a uniform scratch pattern—so move up only when the previous grit’s scratches are fully removed.

Clean between steps and keep pressure lighter as grits get finer.

Why Sanding Matters

Between-coat sanding, burnishing prep, micarta finishing, and brushed stainless blending all come down to scratch depth and direction. A controlled progression levels defects and refines scratches so the final look is smooth and consistent.

Recommended Tools

• Sanding block + soft interface pad (for edges and curves)
• Spray bottle (water + a drop of dish soap) for wet sanding
• Microfiber towels + lint-free wipes
• Bright flashlight for raking-light inspection
• Masking tape for edges/corners
• Degreaser wipe (metal) between steps

Recommended Grit Sequence

• 120 grit
• 150 grit
• 220 grit
• 800 grit
• 1000 grit
• 1200 grit
• 1500 grit
• 2000 grit

For metals, keep your final strokes aligned with the desired grain direction. For finish sanding between coats, use light pressure and avoid cutting through edges.

Step-by-Step

1. Clean the guitar body finish and remove oils/dust. Dry fully before sanding.
2. Pick a starting grit that removes the defect efficiently without creating unnecessary deep scratches.
3. Sand evenly with overlapping passes using a consistent backing. Wipe clean and inspect under raking light until uniform. For a controlled working step, use 220 Grit (25 Pack).
4. Move up one grit at a time. Don’t advance until earlier scratches are fully removed everywhere you can inspect.
5. For fine refinement, wet sand and rinse often to reduce loading and avoid contamination scratches. For refinement with less loading, step up to 120 Grit (10 Pack) with wet sanding.
6. Finish at the final grit for the next step (clear coat, polish, or burnish), then clean thoroughly. For final cleanup passes (or an alternate pack), keep 150 Grit (10 Pack) ready.

Special Cases

Between coats (guitar finish): Use very light pressure and protect edges; sand-through happens fast on corners.

Leather edges: Keep the sanding flat and consistent so burnishing compresses evenly.

Brushed stainless: Final passes should follow the grain; avoid circular motions that look like swirls.

Pro Tips

• Use raking light every grit—overhead light hides scratches.
• Change direction slightly between grits to confirm scratch removal.
• Keep slurry clean; rinse often to prevent random deep scratches.
• Replace sheets early when they load and stop cutting cleanly.

Aftercare

• Wipe/rinse sanding residue and dry completely before finishing.
• Remove masking tape slowly to avoid adhesive residue.
• Store leftover sheets flat and dry.

FAQs

• Wet or dry use? Both. Wet sanding often reduces loading and improves scratch visibility.
• When do I move up a grit? When you can’t find any scratches from the previous grit under raking light.
• Why do I still see lines? Usually leftover scratches from an earlier grit—step back one grit and re-sand cleanly.

Watch & Learn

Use the video to compare scratch patterns between grits. If the surface isn’t uniformly refined, stay on that grit longer before moving up.

For more wet/dry silicon carbide sanding sheets and grit options, visit eQualle on Amazon.