
Nylon 612 Polyamide PA Round Solid Level Untapered Bristle Toothbrush Filament. Extensive Color Options: Available in 48 standard colors including Nature, White, Black, and Red. Customizable Dimensions: Diameter ranges from 0.05mm to 0.50mm with custom cut lengths available. Versatile Material Selection: Offers PA612, PA610, PA6, and PBT based on production needs and budget. Superior Chemical Resistance: Features excellent chemical resistance and high impact resistance. Low Water Absorption: PA612 resin offers lower water absorption compared to other nylon types. Global Certifications: Awarded ISO 9001:2008, ROHS, REACH, and FDA compliance. Wide Application Range: Suitable for toothbrushes, industrial brushes, medical brushes, and cosmetics.