Answer
For cured car touch-up paint, wet sand with 1500 or 2000, then 3000 before polishing.
Why it happens
The touch-up spot must cure and then be leveled carefully before polishing.
Recommended grit
Use 1500 or 2000 to level cured touch-up paint, then 3000 before polishing.
Wet or dry
Wet.
Success check
The touch-up spot is level with the surrounding surface before polishing.
What to do
- Let touch-up paint cure fully.
- Wet sand lightly with 1500 or 2000.
- Refine with 3000.
- Polish after the area is level and evenly hazed.
Avoid: Do not sand soft touch-up paint.