Clean the wheel thoroughly with soap and water
Dry the wheel completely
Inspect the damage to determine if it is cosmetic or structural
Sand the curb rash with fine-grit sandpaper
Feather the edges around the damaged area
Fill deep gouges with wheel repair filler or metal epoxy
Let the filler cure fully
Sand the repaired area smooth
Mask off the tire and surrounding surfaces
Apply primer to the repaired area
Apply matching wheel paint in light coats
Let each coat dry before applying the next
Apply clear coat if needed
Let the finish cure completely
Polish the repaired area if appropriate
Check for cracks, bends, or air leaks
Replace the wheel if the damage is severe or structural