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Problem

What grit for screening hardwood floors?

Hardwood floor finish needs light scuffing before a new coat, not aggressive removal.

wood dry sanding between coats haze
Answer

For screening hardwood floors, use 220 or 320 lightly on the cured finish before recoating.

Why it happens
Screening is meant to abrade the existing finish for adhesion. Too coarse a grit can cut through the finish unevenly.
Recommended grit
Use 220 or 320 for light scuff sanding between floor finish coats.
Wet or dry
Dry.
Success check
The finish is evenly dulled with no sand-through spots.

What to do

  1. Clean the floor thoroughly.
  2. Scuff the cured finish lightly with 220 or 320.
  3. Vacuum and tack the dust completely.
  4. Apply the next compatible finish coat.
Avoid: Do not use coarse grit when only screening a finish coat.

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