Nylon filament is widely used on brush making industry. It can be in stright or crimped form on request. Below are its classification and properties. Item Diameter Density Melting Point Advantage Application PA6 ≥ø0.08mm 1.12~1.16g/m3 215~225℃ Wear-resisting and good performance in temperature Industrial brush, Daily brush PA66 ≥ø0.08mm 1.12~1.16g/m3 235~263℃ Wear-resisting and good performance in temperature Surface treatment industrial brush PA610 ≥ø0.05mm 1.06~1.08g/m3 215~225℃ Low moisture absorption rate Oral caring brush PA612 ≥ø0.05mm 1.06g/m3 215~220℃ Good elasticity, low moisture absorption rate High end brush PA46 ≥ø0.15mm 1.18g/m3  295℃ Resistant to High-temperature Brush working in high temperature