Problem group
Swirl Marks Remain
Circular or curved marks remain visible after sanding or wet sanding.
Swirls remain after 1000 grit
Swirl marks are still visible after sanding with 1000 grit. Recommended grit: Use 800 only for deeper swirls, 1000 for normal leveling, then refine with 1200, 1500, 2000, and 3000.
automotive / clear coat
swirl mark removal
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Swirls from dirty wet sanding water
Wet sanding leaves swirl marks because the water or surface is dirty. Recommended grit: Stay with the current grit until the dirty-water marks are removed, then refine with the next finer grits such as 1500, 2000, and 3000.
automotive / clear coat
wet sanding
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Random orbital swirl pattern remains
A random orbital sander leaves swirl marks that remain visible. Recommended grit: Return to the grit that removes the swirls, often 220 or 320, then refine with 400 and finer as needed.
general sandpaper use
swirl mark removal
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