Sand Guitar Finish: Smooth Between Clear Coats

This step-by-step shows how to sand between coats for smoother clear coat on a guitar body finish using silicon carbide sheets for wet or dry use. The goal is a flat, uniform scratch pattern so the repair or finish disappears instead of standing out.

Work one grit at a time and only move up when the previous scratches are completely removed under raking light.

Why Sanding Matters

Uneven sanding creates edges you can see after paint or clear coat. Skipped refinement leaves deep scratches that show up later as haze or lines. A controlled grit sequence levels the surface and refines scratches so your next step (paint, clear, or burnish) looks consistent.

Recommended Tools

• Sanding block (hard for flat areas, softer pad for curves)
• Bright flashlight for raking-light inspection
• Microfiber towels and lint-free wipes
• Masking tape for edges and high spots
• Spray bottle (water + a drop of dish soap) for wet sanding
• Vacuum/tack cloth (for wall/wood dust control)

Recommended Grit Sequence

• 80 grit
• 220 grit
• 400 grit
• 800 grit
• 1000 grit
• 1200 grit
• 1500 grit
• 2000 grit

Use light pressure on fine steps. Wet sanding is usually best above ~600 grit to reduce loading and keep scratches consistent.

Step-by-Step

1. Clean the guitar body finish and remove dust/oils. Let it dry before your first grit.
2. Pick the least-coarse starting grit that still removes the defect efficiently. Use a block to avoid creating dips.
3. Sand evenly with overlapping passes until the surface looks uniform. Wipe clean and inspect under raking light. For a controlled working step, use 220 Grit (50 Pack) where it matches your progression.
4. Move up one grit and repeat. Do not advance until the previous grit’s scratches are gone everywhere.
5. For fine refinement, switch to wet sanding and keep the slurry clean—rinse the sheet often. For refinement with less loading, use 80 Grit (25 Pack) with wet sanding.
6. Finish at your final grit for the next step, then clean thoroughly before paint/clear/burnish. For final cleanup passes (or an alternate pack), keep 400 Grit (25 Pack) ready.

Special Cases

Edges/corners: Tape them or reduce pressure—most sand-through happens on edges.

Loading/clogging: Switch to wet sanding, reduce pressure, and replace sheets early.

Swirl marks: Keep strokes aligned with the desired finish direction and avoid circular motions.

Pro Tips

• Change direction slightly between grits so you can confirm scratch removal.
• Use raking light every grit—overhead light hides defects.
• Keep the work surface clean; stray grit can ruin fine steps.
• Stop and wipe often—slurry can hide scratches until it dries.

Aftercare

• Wipe/rinse residue and dry completely before finishing.
• Remove tape slowly to avoid lifting edges.
• 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.
• Can I skip grits? Sometimes, but only if the next grit removes the previous scratches quickly and evenly.

Watch & Learn

Use the video to compare scratch patterns between grits. If the surface looks patchy or you can still see older lines, stay on that grit longer before moving up.

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