eQualle Sandpaper Sheets for Automotive Paint Prep (320–800 Grit Guide)

When repainting a car, the secret to a smooth, professional-looking finish lies in the surface prep. eQualle 9x11 inch Wet/Dry Sandpaper Sheets deliver the precision and durability needed to sand primer, level imperfections, and create the perfect base for paint and clear coat.

Why Sanding Matters Before Painting a Car

Paint adheres best to a properly prepared surface. Sanding removes dust nibs, filler marks, or scratches while creating a micro-texture for primer and paint to bond. Skipping this step leads to peeling, orange peel texture, or uneven gloss.

Tools You’ll Need

• Orbital sander or sanding block
• Body filler and spreader (if needed)
• Tack cloth and microfiber cloths
• Masking tape and plastic sheeting
• eQualle 9x11 in Wet/Dry Sandpaper Sheets

Best Sandpaper Grits for Auto Paint Prep

• 320 Grit (100-pack) — Levels primer and filler, smoothing out bodywork.
• 400 Grit (25-pack) — Creates a uniform surface for primer adhesion.
• 600 Grit (50-pack) — Refines primer coat for basecoat application.
• 800 Grit (25-pack) — Final sanding before paint for a smooth, flawless finish.

Step-by-Step: Sanding for Automotive Painting

1. Repair & prime. Fill dents or scratches with body filler, then apply primer.
2. Sand with 320 grit. Smooth primer and filler to level the surface.
3. Switch to 400 grit. Create a consistent surface ready for final primer coats.
4. Refine with 600 grit. Wet sand primer for a silky smooth base.
5. Finish with 800 grit. Light wet sanding ensures paint lays down evenly.
6. Clean thoroughly. Wipe with tack cloth to remove sanding residue.
7. Apply paint. Spray basecoat followed by clear coat for protection and gloss.

Special Cases

For metallic paints, sanding up to 800 grit ensures the clearest base. For solid colors, stopping at 600 grit may be sufficient.

Pro Tips

• Always wet sand when working with fine grits to prevent clogging.
• Sand in overlapping passes to avoid uneven textures.
• Use bright lighting to spot imperfections before painting.

Aftercare

• Allow clear coat to cure fully before polishing.
• Use polishing compounds only after 30 days of curing.
• Wash cars with mild soap—avoid aggressive cleaners that damage paint.

FAQs

• Do I need to sand between paint coats? Yes, lightly wet sanding with 800 grit between coats ensures maximum adhesion.
• Can I sand down runs in paint? Yes, carefully wet sand with 600–800 grit, then polish.
• Is 320 grit too coarse for primer? No, it’s ideal for leveling filler and shaping primer coats.

Watch & Learn

Achieve showroom-quality results with eQualle Sandpaper Sheets (9x11 in, Wet or Dry). Explore the auto paint prep collection today.