Problem

What grit to sand paint runs?

Paint runs or sags leave raised lines after the paint dries.

Answer

Let paint runs cure, then wet sand with 600, refine with 800 or 1000, and polish or recoat.

Why it happens
The raised paint must harden before it can be leveled without smearing.
Recommended grit
Use 600 to level small runs, then 800 or 1000 for finer blending before polishing or recoating.
Wet or dry
Wet for fine paint correction after paint has cured.
Success check
The run is level and the sanding haze is even.

What to do

  1. Let the paint cure fully.
  2. Wet sand the raised run with 600.
  3. Refine with 800 or 1000.
  4. Polish or recoat based on the paint system.
Avoid: Do not sand fresh or soft paint runs.

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