What Grit Should You Start With When Using Wet Sandpaper for Paint Restoration?

Many car owners may not know what grit to start with when using wet sandpaper for paint restoration, scratch removal, or fixing orange peel texture. If the grit is too coarse, it can easily sand through the clear coat and damage the original paint. if it’s too fine, it won’t remove the imperfections, resulting in a waste of time and materials. Below, the DMS editorial team will explain the correct starting grit and sanding sequence for different paint issues.

I. Starting Grit for Different Paint Conditions

Minor sun rays, fine scratches, and oxidation-induced dullness

Start with 1500 grit → 2000 grit → 3000 grit

Wet sandpaper is suitable for daily maintenance of shallow scratches and restoring a matte finish without damaging the original clear coat.

Moderate scratches, minor stone chips, and touch-up seam blending

Start with 1000 grit → 1200-grit → 1500 grit → 2000 grit

Smooth out orange peel on seams and medium-to-deep scratches, then progressively refine the finish.

Deep scratches, paint loss exposing the primer, large areas of orange peel, or paint runs

Start with 800 grit → 1000 → 1200 → 1500 → 2000 grit

First level out surface imperfections, then fine-sand with wet sandpaper to achieve a smooth finish, and finally polish to restore the original appearance.

New car polishing and pre-polishing for routine maintenance

Start directly with 2000 grit or 3000 grit

Perform only light leveling; do not damage the factory clear coat.

II. Standard Sanding Sequence

Level imperfections → Gradually increase grit size → Fine finishing → Waxing or machine polishing to restore

800 → 1000 → 1200 → 1500 → 2000 → 3000 grit

III. Key Tips

Always progress from coarse to fine grits. do not skip too many grits, as this can leave wet sanding marks.

Use water throughout the process, apply light pressure, and sand at a steady speed.

For factory paint, start at no lower than 1500 grit to avoid sanding through the clear coat.

In summary, When restoring a paint finish, there is no need to blindly choose high grit numbers or insist on using only coarse wet sandpaper. Select the appropriate starting grit based on the depth of the scratches and the severity of the paint defects, and wet-sand in order from coarse to fine. This approach not only efficiently removes scratches, orange peel, and sunburst patterns but also protects the original clear coat. The result is a smooth, translucent paint surface, and subsequent polishing and waxing will yield even more impressive results.