Answer
Change the sheet when it stops cutting, feels smooth, or loads with dust or residue.
Why it happens
A worn or clogged sheet stops cutting and can leave uneven marks.
Recommended grit
Use a fresh sheet when cutting slows, the abrasive feels smooth, or residue is loaded into the grit.
Wet or dry
Dry or wet depending on the task.
Success check
The fresh sheet cuts evenly with less pressure.
What to do
- Check whether the sheet still feels abrasive.
- Look for clogged dust or residue.
- Replace the sheet when cutting slows.
- Clean the surface before continuing.
Avoid: Do not keep using a glazed sheet for final prep.