Material
PA6 Nylon
PA6 Nylon is selected from its stiffness, recovery, wear, wet-service, chemical, and temperature behavior. To define stiffness, confirm the material together with filament diameter, free trim length, density, grade, and service conditions.
Material Overview
PA6 is a short-chain polyamide filament with useful toughness and abrasion behavior, combined with higher moisture uptake than long-chain PA12 or PA612 grades.
In a finished brush, PA6 Nylon does not create a fixed stiffness by itself. Filament diameter, trim length, density, tuft layout, and installed contact determine working force, while grade and environment affect durability and recovery.
Material Properties
| Density | 1.12–1.14 g/cm³ |
|---|---|
| Melting point | 215–225°C |
| Water absorption at saturation | 8–10% |
| Shore hardness | D 75–82 |
| Filament diameter | 0.10–2.00 mm |
Brush Applications
For PA6 Nylon, directly related brush structures include Tube & Pipe Bore Brushes, Roller and Conveyor Brushes, and Handheld Detail Brushes. Applications related to PA6 Nylon include Laboratory Tube Cleaning, CPAP Hose Cleaning, Dental Tool Cleaning, and Industrial Machine Cleaning.
Specification and Customization
Material form
Filament
Common forms
Filament; brush fill.
Grade
Standard PA6 brush-filament grade
Reference standard
ISO 527-1:2019; ASTM D638; ISO 62:2008; ASTM D570-22; ISO 868:2003; ASTM D2240-15(2021); ISO 4892-3:2024; ASTM G154-23; UL 94
Limitations and Alternatives
PA6 takes up more moisture than long-chain nylons, which can reduce stiffness and dimensional stability in continuously wet service.
Frequently Asked Questions
What are the key properties of PA6 Nylon brush material?
PA6 is a short-chain polyamide filament with useful toughness and abrasion behavior, combined with higher moisture uptake than long-chain PA12 or PA612 grades. Direct data: Density: 1.12–1.14 g/cm³; Melting point: 215–225°C; Water absorption at saturation: 8–10%; Shore hardness: D 75–82; Filament diameter: 0.10–2.00 mm.
Where is PA6 Nylon used in cleaning brushes?
Economical industrial scrubbing, tube cleaning and strip-brush contact in moderate wet or dry service.
How does filament geometry change PA6 Nylon brush stiffness?
PA6 Nylon changes brush stiffness through filament diameter, free trim, density, crimp, and contact. Use finer filament and longer trim for conformable contact; use coarser filament, shorter trim, or higher density for stronger displacement or cutting.
When should PA6 Nylon be replaced by another material?
Compare PA6 Nylon with PA66, PP, PBT. Change material when wet stiffness, temperature, chemical resistance, conductivity, particle shedding, or surface marking becomes the limiting factor.
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