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Key Applications of PA66: Exploring Its Two Major Fields 2024-12-23


As one of the most widely used nylon products, PA66 is renowned for its high strength, excellent wear resistance, and superior lubricity, making it widely applicable in fields such as engineering plastics, industrial yarns, and civilian threads. According to market data, approximately 59% of global PA66 consumption is used in engineering plastics, while 41% is utilized in synthetic fibers.


Long Glass Fiber Reinforced PA 66



01|Engineering Plastics

Approximately 45% of PA66 is used in the automotive industry, while around 16% is applied in the electrical and electronics industry.

With the rising penetration of new energy vehicles, the trend toward automotive lightweighting has become increasingly prominent. As an engineering plastic, PA66 stands out as an ideal substitute for traditional metal materials due to its advantages in lightweight properties, heat resistance, oil resistance, and flame retardancy. It is widely used in automotive engine systems, electrical systems, chassis systems, and more, showcasing a broad potential for "plastic replacing steel" applications.

Studies show that reducing the total weight of a new energy vehicle by 100kg can increase its driving range by 10%-11%, while also reducing battery costs and daily wear-and-tear costs by 20%, highlighting the significant advantages of lightweighting. As carbon neutrality continues to advance, the demand for PA66 in automotive, electronic, and consumer goods sectors is expected to grow significantly.

The table below illustrates examples of PA66 applications in the automotive industry:


Component Name
Material Used
Molding Method and Features
Gear Cover
PA6, PA66
Injection molding, cost reduction, noise prevention
Filter
PA6, PA66
Lightweight, cost reduction, injection molding
Sun Visor Bracket
GFPA6, PA66
Injection molding, lightweight
Wiper Gear
PA66
Injection molding
Counting Gear, Speed Adjustment Gear
GFPA6, PA66
Injection molding, cost reduction, noise prevention
Headlight and Fog Light Housings
GFPA6, PA66
Injection molding
Auto-Adjust Seat Frame
Antibacterial GFPA6
Injection molding, lightweight
Battery Case
GFPA66
Injection molding
Wheel Trim Cover
CF or MPA6, PPO/PA6 modified PA66
Injection molding
Lunar Lock
GFPA66
Injection molding, high strength, good appearance
Charcoal Canister
PA66
Heat and oil resistance, prevents fuel tank vapor diffusion into the atmosphere
Hose Clamp
PA66
Injection molding
Condenser Guard Bracket
PA66
Injection molding
Nut Plug
PA66
-
Plastic Bracket
PA66
Injection molding
Support Clamp
PA66
Injection molding
Accelerator Pedal Bearing Sleeve
30% GFPA66
-
Air Conditioner Vent Control Lever
30% GFPA66
-
Worm Gear
GFPA66
Injection molding
Door Mirror Bracket
GFPA66
Injection molding
Roof Spoiler
CFPA66
High rigidity, good appearance
Roof Rainwater Gutter
GFPA66
High rigidity, lightweight
Adjustment Control Cam
GFPA66
Injection molding, lightweight, durable
Thermostat Housing Cover
GFPA66
Injection molding, lightweight, strong durability
Water Pump Impeller
GFPA66
Injection molding, cost reduction
Handle
GFPA66
-
Seat Back Recliner
CFPA66
Saves 1/3 of costs
Lumbar Support Adjuster
PA
Weight reduction by 67%
Various Wheels, Rollers, Gears
MC Nylon, GFPA
High strength, excellent wear, weather, and sliding resistance



02|Synthetic Fibers

Due to its high melting point and heat distortion temperature, PA66 exhibits excellent tensile and compressive strength in the spinning field, making it particularly advantageous for producing ultrafine fibers and high-strength clothing fabrics, accounting for 28% of PA66 downstream applications.

Moreover, PA66 fibers have a relatively dense crystalline structure, making them softer and more skin-friendly compared to PA6 fibers. With superior breathability, wear resistance, and adaptability to temperature and sunlight, PA66 fibers perform exceptionally well as an ideal material for outdoor sportswear, yoga apparel, and premium branded clothing, accounting for 10% of PA66 downstream applications.

However, due to the limited supply of upstream adiponitrile, the current application of PA66 in civilian silk remains relatively low. If breakthroughs in civilian silk technology are achieved in the future, PA66 is expected to partially replace the PA6 market, unlocking broader growth potential.

In summary, as "carbon neutrality" continues to advance, there is significant growth potential for PA66 demand in the automotive and electronic consumer goods sectors. Additionally, in the civilian silk sector, PA66 is poised to partially replace the PA6 market.




For PA66 resin, we offer reinforced composite pellets filled with long glass fibers and long carbon fibers.

Please contact us to obtain free material data.







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