Answer
To remove powder coat, use 60 or 80 first, then refine with 120, 180, and 220 before repainting.
Why it happens
Powder coating is a durable coating, so fine grits often only scuff the surface instead of removing it.
Recommended grit
Use 60 or 80 for removal, then 120, 180, and 220 for prep.
Wet or dry
Dry for removal.
Success check
The powder coat is removed and the base surface is refined for the next coating step.
What to do
- Use 60 or 80 only for coating removal.
- Sand evenly and avoid gouging the base material.
- Refine with 120 and 180.
- Finish prep with 220 before primer or repainting.
Avoid: Do not expect 320 or finer to remove powder coat efficiently.