Sanding Epoxy Countertops: 220–3000 Grit Sandpaper Sheets

Epoxy countertops offer a sleek, modern look, but achieving a glass-smooth finish requires precise sanding. With 9x11 inch sandpaper sheets in the right sequence, you can level surfaces, remove imperfections, and prepare for polishing. eQualle’s wet dry silicon carbide sandpaper sheets are ideal for both leveling and ultra-fine finishing.

Why Sand Epoxy Countertops?

Epoxy often cures with ripples, bubbles, or dust trapped in the surface. Sanding levels these imperfections and creates a uniform surface for polishing or recoating. Without sanding, the surface may remain uneven or cloudy.

Tools You’ll Need

• eQualle fine sandpaper sheets
• Orbital sander or sanding block
• Spray bottle with water for wet sanding
• Microfiber towels
• Polishing compound

Best Grit Sequence for Epoxy Countertops

• 220 grit — Levels cured epoxy and removes high spots. 220 Grit (100-pack).
• 400 grit — Refines scratches and evens the surface. 400 Grit (25-pack).
• 800 grit — Begins restoring clarity. 800 Grit (25-pack).
• 1500 grit — Prepares surface for polishing. 1500 Grit (25-pack).
• 3000 grit — Final ultra-fine sanding for a mirror finish. 3000 Grit (50-pack).

Step-by-Step Epoxy Sanding

1. Start with 220 grit sandpaper sheets. Sand evenly across the countertop to remove ripples and bubbles.
2. Switch to 400 grit. Wet sand to refine scratches left by coarse sanding.
3. Move to 800 grit sandpaper sheets. Continue wet sanding until the surface begins to regain clarity.
4. Use 1500 grit. Smooth and refine the surface, preparing it for polishing.
5. Finish with 3000 grit sandpaper sheets. Wet sand in circular motions for a near-polished look.
6. Polish. Apply compound with a buffer for a glossy, durable finish.

Special Cases

For countertops with deep bubbles, start with 120 grit before moving into the sequence. For matte finishes, stop at 800–1000 grit instead of continuing to 3000.

Pro Tips

• Always wet sand finer grits to avoid clogging and heat buildup.
• Sand in overlapping passes for even leveling.
• Use sandpaper sheets that don’t clog with dust for consistent results.

Aftercare

• Seal countertops with a protective coat after polishing.
• Clean with non-abrasive cloths to maintain gloss.
• Keep assorted grits ready for touch-ups when scratches appear.

FAQs

• Do I need to sand all epoxy countertops? Yes—sanding ensures a level and consistent finish.
• What grit creates a glossy look? 3000 grit followed by polishing produces a mirror-like surface.
• Which pack should I buy? A 220 Grit (100-pack) is essential for leveling epoxy surfaces.

Watch & Learn

Get flawless countertops with eQualle 9x11 in sandpaper sheets. Shop the complete selection in the Fine Sandpaper Collection.