Answer
For alloy wheel curb rash, shape with 180 or 220, then blend with 320, 400, and 600.
Why it happens
Damaged alloy needs shaping first, then finer grits to blend the repair before primer, paint, or polishing.
Recommended grit
Use 180 or 220 for shaping light rash, then 320, 400, and 600 for prep.
Wet or dry
Dry for shaping; wet can be used at finer stages.
Success check
The damaged edge is smooth and blended with the surrounding surface.
What to do
- Clean the damaged wheel area.
- Shape light rash with 180 or 220.
- Blend with 320 and 400.
- Use 600 for finer paint or primer prep.
Avoid: Do not use coarse grit across the entire wheel face.