Answer
For touch-up paint, let it cure, wet sand lightly with 1500 or 2000, refine with 3000, then polish.
Why it happens
The touch-up area needs to be leveled and refined before polishing or recoating.
Recommended grit
Use 1500 or 2000 for careful leveling, then 3000 before polishing.
Wet or dry
Wet.
Success check
The raised edge is level and the haze is small and even before polishing.
What to do
- Let the touch-up paint cure fully.
- Wet sand lightly with 1500 or 2000.
- Refine with 3000.
- Polish after the area is level.
Avoid: Do not sand fresh touch-up paint.