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Problem

What grit for a wood door before painting?

A painted door can show scratches or peeling when the prep is too rough or too glossy.

wood paint primer dry sanding
Answer

For a wood door before painting, clean first, scuff with 180 or 220, then use 320 lightly between coats.

Why it happens
Old finish needs to be cleaned, scuffed, and refined before primer or paint.
Recommended grit
Use 180 or 220 for general door prep, and 320 lightly between cured coats.
Wet or dry
Dry.
Success check
The door is clean, dull, and evenly scuffed before paint.

What to do

  1. Clean the door surface.
  2. Sand rough or peeling areas as needed.
  3. Scuff the full door with 180 or 220.
  4. Use 320 lightly between cured coats.
Avoid: Do not paint over glossy or dusty areas.

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