Sanding Sequence with 180, 360, and 800 Grit Sandpaper

For projects that demand both precision shaping and smooth finishing, the grit sequence of 180, 360, and 800 sandpaper is an excellent choice. This balanced progression works well for woodworking, auto refinishing, and resin projects.

Why This Sequence Works

180 grit smooths surfaces and removes light scratches or tool marks. 360 grit refines the texture, preparing for finishes. Finally, 800 grit polishes surfaces, leaving them silky and ready for coating or buffing.

Tools You’ll Need

• Sanding block or orbital sander for 180 grit prep
• Sanding sponge or flexible pad for 360 grit refinement
• Foam pad with water spray bottle for 800 grit wet sanding
• Vacuum and tack cloth

Step-by-Step Process

1. Initial smoothing. Start with 180 grit (25-pack) to level surfaces and prepare them for refinement.
2. Surface refinement. Switch to 360 grit (50-pack) to erase marks and leave a uniform surface.
3. Final finish. Wet sand with 800 grit (100-pack) for a satin-smooth surface that’s ready for coating or polishing.
4. Clean between stages. Always vacuum and tack cloth after each sanding step to avoid contamination.

Special Cases

In woodworking, 180 grit is ideal for shaping, while 360 grit prepares for stain and 800 grit adds refinement. For auto refinishing, 180 grit helps shape filler, 360 smooths primer, and 800 polishes clear coats. Resin projects also benefit from this sequence for clarity and smoothness.

Pro Tips

• Always sand with the grain on wood for best results.
• Wet sanding at 800 grit prevents clogging and leaves a smoother finish.
• Use consistent, light strokes with finer grits for even results.

Aftercare

• Apply finishes quickly after sanding to protect surfaces.
• Buff 800 grit results for added shine.
• Store sandpapers flat and dry to maintain performance.

FAQs

• Is 180 grit fine enough before stain? Yes, but following with 360 grit ensures a more even finish.
• What’s 360 grit used for? It bridges coarse and fine sanding, leaving surfaces ready for coatings.
• Why use 800 grit? It delivers a polished, satin-smooth surface for clear coats, resin, or fine furniture.

Watch & Learn

By following a sanding sequence of 180, 360, and 800 grit sandpaper, you’ll achieve professional results that move smoothly from prep to finish.