Shenzhen Donggang New Material Technology Co., Ltd. is one of the leading manufacturers and suppliers of heat-resistant brush filaments in China. Please feel free to wholesale bulk heat-resistant brush filaments in stock here from our factory. All customized products are with high quality and low price. Contact us for quotation.
Product Introduction
Donggang heat-resistant brush filament is a dedicated special-grade industrial bristle raw material. It is produced via closed dust-free extrusion process, integrated production line for high-temperature gradient heat setting, and one-step modification with high-temperature-resistant masterbatch. Finished bristles feature high heat resistance, anti-softening performance and low water absorption, with consistent thermal stability across every batch.
Product Specification Parameters
|
Item |
Standard Parameters |
Customizable Range for Clients |
|
Substrate Material |
Modified virgin nylon PA46 / PA66 |
Integral addition of antibacterial, anti-static, flame-retardant or bamboo-charcoal masterbatch available |
|
Filament Diameter Range |
0.08-2.00 mm |
Precisely adjustable in gradients of 0.01 mm |
|
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, tapered 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 |
PA66:235-263 ℃ PA46:295-300 ℃ |
Excellent heat-resistance performance |
|
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 |
Core Product Performance Advantages
Long-term stability under high temperature
Donggang heat-resistant bristles remain non-deformable under continuous high-temperature operation.
High heat resistance and wear resistance
Frictional wear is greatly reduced under high-temperature, high-humidity and oily conditions.
Low water absorption & anti-lodging performance
Low water absorption and anti-lodging property under high-temperature washing conditions; good bristle uprightness for long-term service.
Small filament-diameter tolerance
Imported constant-temperature extrusion equipment is adopted for real-time precise diameter control with tolerance of ±6%.
Core Production Technology
Blending of special modified heat-resistant pellets
Adopting integrated co-extrusion process with custom stable high-temperature-resistant masterbatch for long-lasting non-degrading heat-resistance.
Constant-temperature gradient extrusion & stretching
Segmented temperature-controlled extrusion eliminates internal stress inside filaments.
High-temperature setting & sizing
Segmented temperature-ramping setting process ensures sufficient curing of bristles and superior thermal stability.
Closed-loop quality-control system
Raw-material heat-resistance test → real-time on-line monitoring of temperature & filament diameter → segmented high-temperature sampling inspection → full inspection of finished-product heat-resistance → re-inspection before shipment.
Multi-Dimensional Customization Services
Specification Customization: filament diameter, bristle root thickness, cross-section dimension & shape.
Heat-resistance-grade Customization: three grades including standard heat-resistant, medium-high heat-resistant and high-strength ultra-heat-resistant, formulated on demand.
Functional Modification Customization: negative-ion, antibacterial, anti-static, flame-retardant, conductive, bamboo-charcoal and other functions.
Appearance Customization: full Pantone color range, solid-color / dual-color composite filaments.
Process & Dimension Customization: raw filament length, straight filament, large-crimp filament, small-crimp filament.
Cross-Section Customization: round, polygonal and special-shaped profiles available.
Application Scenarios
Hair-dressing Industry: Hot-air styling brushes, steam hair brushes
Donggang modified PA66 bristles enable continuous stable operation with no harmful substances leached at high temperatures.
Manufacturing Industry: High-temperature metal-cleaning roller brushes, cleaning brushes for die-casting equipment
Donggang PA46 bristles feature a melting point up to 295-300 ℃ with filament diameter tolerance controlled within ±6%.
Household Appliances: High-temperature range-hood cleaning brushes, high-temperature cleaning brush heads
Two substrate options of PA46 and modified PA66 are available. Heat-resistance grade can be customized; fatigue recovery rate reaches 70%.
Automation Equipment: Auxiliary brushes for oil & dust removal on high-temperature assembly lines
Donggang supplies multi-grade custom high-temperature-resistant formulas. Hardness, fatigue recovery rate and tensile strength satisfy diverse order requirements, with recovery rate above 70%.
Why Choose Donggang Heat-Resistant Brush Filaments
Dedicated R&D production lines for modified products, focusing on R&D and manufacturing of heat-resistant brush filaments.
Fast shipment for standard in-stock models. Production-line reservation shortens lead-time for modified custom products, with stable bulk export worldwide.
One-on-one technical support; working-condition-adapted solutions for industrial high-temperature cleaning and food-baking-grade heat-resistant bristles.
Comprehensive after-sales system; returns & exchanges supported for non-compliant batches.
1992
established in
31,250 m²
factory area
32
fully automatic wire drawing production lines
8,128 Tons
annual total output
Partner Brands
Donggang maintains long-term stable cooperation with over 40 well-known global brands. Our heat-resistant bristles are steadily supplied for hair-dressing tools, household-appliance cleaning brushes, food-baking equipment and industrial automated cleaning assembly lines. Reliable quality wins trust from manufacturers all over the world.
Authoritative Certifications & Test Reports
PAHS
FDA
ISO9001
RoHS
Ortho benzene 17P
Frequently Asked Questions (FAQ)
Q1: What is the MOQ for heat-resistant nylon brush filaments? Are samples free of charge?
A1: MOQ is 200 kg. Samples are free; client only bears shipping cost. Samples will be dispatched within 7-10 working days.
Q2: Can full-set FDA & REACH compliance statements and test reports be provided for food-grade heat-resistant brush filaments?
A2: Complete electronic compliance documents and high-temperature safety test reports can be provided. Hard-copy certificates will be delivered together with bulk goods to satisfy factory-audit requirements for overseas food brands and supermarket manufacturers.
Q3: What is the production lead-time for custom modified bristles for industrial high-temperature cleaning?
A3: Bulk-goods lead-time for functionally modified heat-resistant bristles is 15-30 working days. Lead-time can be shortened by reserving production capacity in advance.
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