Answer
For stainless sink scratches, sand with the grain using 600, then refine with 800 or 1000.
Why it happens
Sink surfaces usually have a grain direction that must be matched during scratch blending.
Recommended grit
Use 600 for light scratches, then 800 or 1000 for finer blending.
Wet or dry
Wet or dry with clean surface control.
Success check
The repair follows the grain and does not show cross-scratches.
What to do
- Clean the sink thoroughly.
- Identify the grain direction.
- Sand with the grain using 600.
- Refine with 800 or 1000.
Avoid: Do not sand across the stainless grain.