Answer
Cut a smaller piece and use a backing pad. Keep the sheet wet and pressure even.
Why it happens
Water, handling, and sheet size can make the paper curl during use.
Recommended grit
Use the selected wet-sanding grit and support the sheet with a backing pad.
Wet or dry
Wet.
Success check
The sheet stays controlled and the surface pattern remains even.
What to do
- Cut the sheet to a smaller, manageable size.
- Wet the surface and sheet evenly.
- Use a sanding block or backing pad.
- Rinse and reposition the sheet when it starts to curl.
Avoid: Do not force a curled sheet with uneven fingertip pressure.