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Problem

What grit removes laser burn from wood?

Laser-cut wood edges can have dark char or burn marks.

wood dry sanding scratches pressure
Answer

For laser burn on wood, use 180 or 220 lightly, then 320 for finer edge cleanup.

Why it happens
Char is a surface layer that must be removed without rounding the edge too much.
Recommended grit
Use 180 or 220 for light char, then 320 for finer edge cleanup.
Wet or dry
Dry.
Success check
The char is reduced and the edge keeps its intended shape.

What to do

  1. Brush loose char from the edge.
  2. Sand lightly with 180 or 220.
  3. Refine with 320 if the edge will be visible.
  4. Remove dust before finish or glue.
Avoid: Do not round over precise laser-cut edges with heavy pressure.

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