Answer
Do not sand polished granite with coarse paper. Only test very fine 2000 or 3000 wet in a hidden spot.
Why it happens
Polished stone needs specialized finishing steps, and normal sanding can change the sheen.
Recommended grit
Avoid sanding polished granite. For minor test work, use only 2000 or 3000 wet in a hidden area.
Wet or dry
Wet only for very fine test work.
Success check
The test area keeps a consistent sheen after cleaning and polishing.
What to do
- Clean the granite first.
- Test in a hidden area before any visible sanding.
- Use 2000 or 3000 only for very minor surface marks.
- Stop if the polish changes unevenly.
Avoid: Do not use coarse grit on polished granite.