Answer
For stainless weld cleanup, use 320 or 400, then refine with 600 and 800 in the finish direction.
Why it happens
Weld cleanup needs controlled sanding that follows the desired finish direction.
Recommended grit
Use 320 or 400 for cleanup, then 600 and 800 for a finer brushed look.
Wet or dry
Dry for initial cleanup; wet can be used at finer stages.
Success check
The cleaned area follows the same direction as the surrounding finish.
What to do
- Clean the welded area first.
- Sand with the grain or intended finish direction.
- Use 320 or 400 for cleanup.
- Refine with 600 and 800.
Avoid: Do not sand randomly across a brushed stainless finish.