Why do abrasives clog, run hot, or shed grit, and how can you reduce these problems?
Abrasives usually clog because removed dust, paint residue, or filler particles are not cleared away in time and accumulate on the abrasive surface. Once this builds up, cutting drops off and the abrasive is more likely to run hot, fray, or shed grit.
Common causes:
• Excessive pressure increases surface heat and makes dust stick more easily.
• The selected grit range is not suitable and the jump between steps is too large.
• Dust extraction is missing or not efficient enough.
• Softer or more resin-rich materials are naturally more likely to load the abrasive.
How to reduce clogging:
• Let the abrasive cut instead of forcing it with heavy pressure.
• Choose grit sizes according to each process step and avoid large jumps.
• In dusty conditions, prioritize more anti-loading backings and structures, and use dust extraction whenever possible.
• Replace the abrasive once cutting slows down noticeably instead of continuing until it is completely clogged.