Answer
Replace the sheet when it stops cutting. Pressing harder with a worn sheet creates heat, scratches, and poor results without removing material faster.
Why it happens
Abrasive grains wear down or load with dust and coating residue, so the sheet rubs instead of cutting.
Recommended grit
Use the correct grit for the job and switch to a fresh sheet when cutting slows. Move coarser only when the grit is too fine for the task.
Wet or dry
Use dry or wet based on the surface. Rinse wet sanding sheets and clear dry sanding dust to extend useful cutting time.
Success check
A fresh or cleaned sheet cuts steadily again without needing heavy pressure.
What to do
- Notice when the sheet starts rubbing instead of cutting.
- Check for loading, smooth worn areas, or torn edges.
- Clean or rinse the sheet when appropriate.
- Replace the sheet if cleaning does not restore cutting.
- Use a coarser grit when the task needs more removal.
- Return to the normal grit sequence after removal.
- Keep pressure light so the new sheet cuts evenly.
Avoid: Do not press harder with a worn sheet. It can heat the surface and leave inconsistent scratches.