Answer
After water-based finish raises grain, let it dry, then scuff lightly with 320 or 400.
Why it happens
Water-based finishes can raise wood fibers, especially if bare wood was not prepped well.
Recommended grit
Use 320 or 400 lightly after the first coat dries.
Wet or dry
Dry.
Success check
The raised fibers are removed and the surface feels smooth.
What to do
- Let the first coat dry fully.
- Scuff lightly with 320 or 400.
- Remove dust completely.
- Apply the next coat after the surface feels smooth.
Avoid: Do not sand wet or soft finish.