Answer
For filler on wood trim, use 220 to level small spots, then 320 before paint.
Why it happens
Trim filler needs careful leveling without flattening decorative profiles.
Recommended grit
Use 220 to level small filled spots, then 320 before primer or paint.
Wet or dry
Dry.
Success check
The filled area is flush and the trim profile remains intact.
What to do
- Let filler dry fully.
- Sand the filled area with 220.
- Refine with 320.
- Remove dust from trim details before painting.
Avoid: Do not flatten trim profiles with hard pressure.