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Problem

What grit removes paint from a metal chair?

Old paint on a metal chair remains uneven or flaky before repainting.

metal paint primer dry sanding
Answer

For a metal chair, remove old paint with 80 or 120, then refine with 180, 220, and 320 before primer.

Why it happens
Loose paint must be removed first, then the metal needs finer prep before primer.
Recommended grit
Use 80 or 120 for loose paint removal, then 180, 220, and 320 before primer.
Wet or dry
Dry.
Success check
The metal chair is clean, dull, and smoothly feathered before primer.

What to do

  1. Remove loose paint and debris.
  2. Use 80 or 120 on heavy old paint.
  3. Refine with 180 and 220.
  4. Use 320 before primer on visible areas.
Avoid: Do not leave paint ridges or loose flakes before primer.

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