PA610 Nylon

PA610, or nylon 6.10, is a polyamide with longer chains than PA6. It takes up about 2–3% water at saturation and keeps roughly 65–75% of its dry stiffness when wet. It is medium to firm, about Shore D 70–80, with a density of 1.07–1.09 g/cm³ and a melting point of 210–220°C. Brush filament runs from about 0.08 mm to 2.5 mm.

In our range: medical instrument brushes and reusable flexible medical brushes, long stainless flexible brushes, glass washing machine rollers, snow sweeping rollers and synthetic bristle brushes. These are jobs that are wet, cold or repeated, where a standard nylon would soften or lose its shape.

For snow rollers, the point is cold: nylon keeps its bending recovery below freezing, so the roller keeps flicking snow and slush clear rather than dragging it.

It depends on the grade. Perlon gives a general maximum continuous working range of about 80–100°C for standard engineering brush filaments; confirm the exact PA610 grade before sustained hot service. Beyond that, a high-temperature polymer such as PPS or PEEK is the next step.

They are close. PA612 takes up a little less water and is the more common choice for precision wet brushes. PA610 balances flexibility and stiffness well in wet applications and is often used on rollers. Both cost more than PA6 and PA66 and are worth it only where wet stiffness matters. For acids, PP and PBT remain the better fill.

• Wet, cold or hot service, and for how long.
• Cleaners and their concentration.
• Roller or brush drawing, filament diameter and trim.
• Material documentation needed, and the quantity per design.