N612 Abrasive Filaments: A Practical Guide for Industrial Use
N612 abrasive filament has become a preferred material for many industrial brushing applications. It offers several practical advantages that make it suitable for demanding surface finishing work. The material absorbs little water, lasts longer than many alternatives, bends well without breaking, and maintains its shape under pressure.

The filament performs best within certain temperature limits. It melts at 210°C and begins to deform at 180°C. These properties make it good for short surface treatments where heat buildup stays low. For jobs requiring fast wheel speeds or heavy pressure, adding a cooling system helps prevent problems. Cooling stops the filaments from melting together, reduces material aging, and extends the brush’s working life.
Manufacturers combine N612 with different abrasives to create specialized versions:
- N612+SIC (silicon carbide) for general purpose use
- N612+AO (aluminum oxide) for metal surfaces
- N612+GC (green carbide) for tough materials
- N612+WA (white alumina) for fine finishing
- N612+DM (diamond) for hardest surfaces

The filaments come in diameters from 0.20mm to 2.00mm, allowing selection based on the required brush stiffness and abrasive power. Thinner filaments work for delicate surfaces while thicker ones handle rougher jobs.
When choosing N612 filament brushes, consider the work surface material, required finish quality, and operating conditions. The right combination of filament type, diameter, and cooling method ensures good results and long service life. Many industrial suppliers stock standard versions, while others offer custom solutions for special applications.
