Answer
For wood stain prep, finish with 180 or 220 and clean all dust before staining.
Why it happens
Wood stain can highlight scratches or uneven prep.
Recommended grit
Use 180 or 220 for final wood prep, depending on the wood and stain instructions.
Wet or dry
Dry.
Success check
The wood has an even feel and visible scratches are removed.
What to do
- Sand with the grain.
- Remove coarse scratches before final prep.
- Finish with 180 or 220.
- Clean dust before applying stain.
Avoid: Do not leave cross-grain scratches before staining.