Answer
Let green or wet wood dry first. Then sand with 120, 180, and 220.
Why it happens
Moist wood fibers compress and smear instead of cutting cleanly.
Recommended grit
Let wood dry first. After drying, use 120, 180, and 220 for normal prep.
Wet or dry
Dry after the wood has dried.
Success check
The dry wood sands cleanly and does not gum up the paper.
What to do
- Let the wood dry before sanding.
- Start with 120 if the surface is rough.
- Refine with 180 and 220.
- Remove dust before finishing.
Avoid: Do not sand wet wood for final finish prep.