Shenzhen Donggang New Material Technology Co., Ltd. is one of the leading manufacturers and suppliers of pa66 brush filaments in China. Please feel free to wholesale bulk pa66 brush filaments in stock here from our factory. All customized products are with high quality and low price. Contact us for quotation.
Product Introduction
This modified PA66 bristle is the mainstream general-purpose raw material for medium-high-temperature applications in the nylon series. Its performance sits between PA6 and PA46, balancing cost-effectiveness and long-term stable heat resistance. No hazardous substances leach out from the virgin substrate. Functional masterbatches including antibacterial, negative-ion, anti-static, flame-retardant and bamboo-charcoal can be integrated via co-extrusion. It is suitable for hair-dressing hot-air styling combs, high-temperature range-hood cleaning brushes, light-duty high-temperature polishing roller brushes and oven-cleaning tools.

Product Specification Parameters
|
Item |
Standard Parameters |
Customizable Range for Clients |
|
Substrate Material |
Virgin modified PA66 nylon with medium-temperature heat-resistant formula |
Integral addition of antibacterial, anti-static, flame-retardant, bamboo-charcoal and other masterbatches available |
|
Filament Diameter Range |
0.08 mm–2.00 mm |
Precisely adjustable in 0.01 mm increments |
|
Standard Filament Length |
1200 mm |
Custom cut-to-length ranging from 20 mm to 1200 mm |
|
Filament Style |
Standard straight filament |
Large-crimp filament, small-crimp filament |
|
Cross-Section |
Standard round shape |
Hollow, triangular, pentagonal and special-shaped cross-sections |
|
Color Options |
Full Pantone color matching |
Solid-color & dual-color composite filaments; no color bleeding or fading under high-temperature washing |
|
Melting Point |
235-263 ℃ |
Stable performance under high-temperature conditions |
|
Standard MOQ |
200 kg |
Small trial orders are accepted |
|
Sample Lead Time |
7-10 working days |
Free samples; client bears shipping cost only |
|
Production Lead Time |
15-30 working days |
Expedited delivery available by reserving dedicated production lines |
|
Standard Packaging |
25 kg moisture-proof export cartons |
Two options: bundled packing or industrial coils |
Four Core Performance Advantages of Modified PA66 Brush Filaments

Long-term medium-temperature heat resistance with outstanding cost-performance
Donggang modified PA66 enables continuous stable operation under high-temperature conditions. With lower procurement cost than PA46, it is the preferred raw material for medium-range high-temperature working conditions.
Wear-resistant and bending-resistant
Frictional wear is greatly reduced under high-temperature oily and steam-humid conditions. The bending recovery rate after repeated flexing reaches ≥70%.


Moderate water absorption, resisting sagging under hot-humid conditions
Low water-swelling rate under steam and lampblack conditions. Bristles remain upright for long-term service and deliver consistent cleaning power.
Micron-level diameter control for high yield in automated processing
Constant-temperature extrusion equipment conducts real-time diameter monitoring with stable tolerance of ±6%. Filaments are smooth and burr-free without material jamming or bristle breakage during tufting and roller-winding, well-suited for mass automated brush-making production.

Self-Developed Production Technology

Integrated blending with special heat-resistant PA66 masterbatch
Heat-resistant masterbatch is high-temperature fused and integrally formed with virgin PA66 pellets. Its heat-resistant and wear-resistant performance will not degrade after long-time scrubbing.

Segmented constant-temperature extrusion & stretching forming
Multi-zone precisely-temperature-controlled wire-drawing eliminates internal stress inside fibers.
Multi-Dimensional Customization Services
Specification Customization: Filament diameter, filament length, bristle-root thickness, round / special-shaped cross-sections.
Heat-resistance-grade Customization: Standard regular grade, slightly upgraded heat-resistant modified grade.
Functional Modification Customization: Food-grade, antibacterial, negative-ion, anti-static, flame-retardant, bamboo-charcoal composite bristles.
Color Customization: Full Pantone color range; solid-color / dual-color composite filaments with no color bleeding or fading under high-temperature washing.
Bristle-style Customization: Straight filaments, large-crimp / small-crimp filaments, special-cross-section bristles.
Packaging Customization: 25 kg moisture-proof export cartons, coil or bundled packing optional.
Main Application Scenarios

Household / salon medium-temperature hot-air styling combs
No hazardous substances leach out from virgin raw materials at high temperatures. It fits most household hot-air combs and strikes a good balance between heat resistance and cost.
Range-hood & oven cleaning brushes for ambient-to-medium-high temperatures
PA66 resists lampblack and performs stably at medium temperatures, suitable for various household high-temperature cleaning brush heads.


Hardware polishing & cleaning roller brushes under normal temperature
Modified PA66 enables stable assembly-line operation under high-temperature conditions with uniform and smooth filament diameter.
Auxiliary cleaning tools for food-baking applications
PA66 has obtained full FDA food-safety certification. Antibacterial modification can be added for oven-baking and food-container cleaning brushes. Safe and compliant, it caters to cross-border maternal-infant and food-equipment brands.

Why Choose Donggang Modified PA66 Brush Filaments
Fast shipment for standard in-stock models. Production-line reservation shortens lead-time for modified custom orders with stable bulk exports worldwide.
One-on-one technical support, delivering working-condition-adapted solutions for industrial high-temperature cleaning and food-baking-grade heat-resistant bristles.
Comprehensive after-sales service: returns & exchanges are allowed for batches failing specifications on wear resistance, dimension and appearance. Full-process support covers tufting and finished-product application issues.
1992
established in
31,250 m²
factory area
32
fully automatic wire drawing production lines
8,128 Tons
annual total output
Long-Term Global Partner Brands
We maintain long-term stable cooperation with world-renowned brands. Modified PA66 bristles are supplied in bulk globally to hair-tool manufacturers, home-appliance-accessory factories, light-duty high-temperature industrial-equipment producers and cross-border traders. Its balanced heat-resistance and cost-performance win consistent re-orders and trust from worldwide clients.

Authoritative Certifications & Test Reports

PAHS

FDA

ISO9001

RoHS

Ortho benzene 17P
Frequently Asked Questions (FAQ)
Q1: What is the MOQ for modified PA66 brush filaments? Are samples free of charge?
A1: Standard MOQ for modified PA66 bristles is 200 kg. Small trial orders are available for in-stock standard colors. Samples are free of charge; the client only covers shipping fees. Samples will be dispatched within 7-10 working days.
Q2: What are the key differences among modified PA66, regular PA6 and PA46?
A2: PA6 fits normal-temperature scenarios. Modified PA66 delivers long-term stability with best cost-performance. PA46 features a melting point of 295-300 ℃ for die-casting and high-power industrial high-temperature equipment.
Q3: Can modified PA66 be used for die-casting equipment running continuously above 200 ℃?
A3: Not recommended. It will gradually soften and deform under prolonged exposure above 160 ℃. Please select our PA46 high-temperature-resistant bristle series for continuous working conditions over 200 ℃.
Q4: Can modified PA66 be modified with antibacterial or anti-static functions?
A4: Yes, integral co-extrusion modification is fully supported, with functions embedded inside the bristle matrix.
Q5: Can filament diameter, color and bristle style be customized separately?
A5: Filament diameter is adjustable in 0.01 mm increments ranging from 0.08 mm-2 mm. Full-range Pantone solid-color and dual-color composite filaments are available. Customization for straight filaments, large-/small-crimp filaments and special-shaped cross-sections is fully supported.
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