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111 clicksWith its core advantages of low water absorption, high wear resistance, oil and chemical resistance, good low-temperature toughness, and dimensional stability, it is mainly used in mid-to-high-end automotive applications such as fuel systems, transmission wear parts, fluid pipelines, electrical insulation, and lightweight structural components.
It is particularly suitable for replacing traditional PA6/PA66 in parts requiring precision, oil resistance, low-temperature resistance, and lightweight performance.
Low water absorption: Balanced water absorption (approx. 0.3%–1.1%), much lower than PA6/PA66, ensuring excellent dimensional stability for precision injection-molded parts.
Wear resistance and self-lubrication: Wear resistance is about 8 times that of copper and superior to PA6/PA66, durable even without oil lubrication.
Oil and chemical resistance: High resistance to gasoline, diesel fuel, lubricating oil, brake fluid, alcohols, weak acids and alkalis.
Low-temperature toughness: Brittle temperature approx. -60°C, maintaining high impact resistance in cold regions.
Heat resistance: Melting point 200–210°C, long-term service temperature 80–120°C, short-term heat resistance up to 150°C+.
Lightweight: Density approx. 1.04 g/cm³, over 80% lighter than metal, helping reduce vehicle weight.
Bio-based: Partially derived from castor oil, environmentally friendly and sustainable, in line with automakers’ low-carbon trends.
II. Main Application Scenarios and Typical Parts in the Automotive Industry
1. Fuel Systems (Core Application)
Multi-layer fuel pipes / oil pipelines (single-layer / co-extruded): Resistant to gasoline, ethanol gasoline, diesel fuel, anti-aging, low permeability, good flexibility.
Fuel filter housing, end caps, brackets: Oil-resistant, dimensionally stable, lightweight.
Fuel tank ventilation valves, pressure regulating valves, fuel level sensor housings: Precise, oil-resistant, electrically insulating.
2. Transmission and Wear-Resistant Moving Parts
Gears, worm gears, worms (sunroofs, seats, wipers, accelerator pedal modules): Wear-resistant, self-lubricating, low noise, maintenance-free.
Bearing cages, bushings, sliders, universal joint bushings: Replace copper/steel, lightweight, noise reduction, wear-resistant.
Door lock mechanisms, hinges, buckles: High toughness, fatigue resistance, no brittleness at low temperatures.
3. Fluid Pipelines and Pneumatic Systems
Brake pipes (hydraulic / pneumatic), clutch oil pipes: Brake fluid-resistant, high-pressure resistant, low-temperature resistant.
Air conditioning hoses, vacuum tubes, vacuum booster components: Refrigerant-resistant, anti-aging, good flexibility.
Pneumatic control pipelines, quick-connect fittings: Oil-resistant, dimensionally stable, reliable sealing.
4. Engine Peripherals and Heat-Resistant Structural Parts
Engine cover, decorative cover, heat shield: Heat-resistant, oil-resistant, lightweight.
Oil dipstick handle, oil pan components, water pump impellers: Engine oil-resistant, hydrolysis-resistant, wear-resistant.
Radiator fan blades, fan shrouds: Heat-resistant, vibration-resistant, dimensionally stable.
5. Electrical and Electronic Components
Sensor housings (pressure / temperature / oxygen sensors), connectors, terminal sheaths: Insulating, oil-resistant, precise, anti-interference.
Wiring harness corrugated pipes, cable sheaths, connectors: Oil-resistant, friction-resistant, weather-resistant, insulating.
Motor end caps, brush holders, coil bobbins: Heat-resistant, insulating, dimensionally stable.
6. Body and Interior Lightweight Parts
Seat adjustment mechanisms, slide rail bushings, headrest brackets: Wear-resistant, high toughness, lightweight.
Sunroof guide rails, seal supports, buckles, interior fasteners: Fatigue-resistant, good low-temperature toughness.
Rearview mirror brackets, adjustment gears, inner door handle components: Weather-resistant, wear-resistant, lightweight.
7. Extended Applications in New Energy Vehicles (NEVs)
Battery pack structural parts, cooling pipelines, seals: Coolant-resistant, insulating, low water absorption, dimensionally stable.
High-voltage wiring harness sheaths, connectors, ECU housings: High insulation, oil-resistant, heat-resistant, anti-aging.
Electric drive system gears, bearings, seals: Wear-resistant, self-lubricating, low noise, lightweight.
III. PA1010 vs PA6/PA66/PA12 (Automotive Material Selection Comparison)
| Properties | PA1010 | PA6 | PA66 | PA12 |
|---|---|---|---|---|
| Water absorption | Medium-low (0.3–1.1%) | High (1.5–3%) | Medium-high (1.2–2.5%) | Extremely low (<0.3%) |
| Wear resistance | ★★★★★ (Superior to PA6/66) | ★★★☆ | ★★★★ | ★★★★ |
| Oil resistance | ★★★★★ | ★★★ | ★★★★ | ★★★★★ |
| Low-temperature toughness | Excellent (-60°C) | Fair | Good | Excellent |
| Long-term heat resistance | 80–120°C | 80–100°C | 120–140°C | 80–110°C |
| Dimensional stability | Excellent | Poor | Moderate | Extremely Excellent |
| Cost | Medium-high | Low | Medium | High |
| Automotive positioning | Precision, oil-resistant, low-temperature, lightweight | General structural parts | High-strength heat-resistant parts |
Glass fiber reinforcement (GF15–50): Improves strength, rigidity, heat resistance and creep resistance (for structural parts and engine peripherals).
Toughening modification: Further enhances low-temperature impact and brittleness resistance (for pipelines and structural parts in cold regions).
Wear-resistant modification (graphite/PTFE/molybdenum disulfide): Lower friction coefficient, longer service life (gears, bearings, sliders).
Weather-resistant / UV-resistant: Suitable for exterior parts, sunroofs and rearview mirror components.
Low warpage / low shrinkage: Precision sensors, connectors and housings.
V. Summary: Core Value of PA1010 in Automotives
Metal replacement: For wear parts and structural parts, achieving 50–80% weight reduction, cost saving, noise reduction and lubrication-free performance.
Short-chain polyamide replacement: More stable dimensions and longer service life in precision, oil-resistant, low-temperature and high-humidity environments.
New energy vehicle adaptation: Insulating, coolant-resistant, low water absorption, eco-friendly and low-carbon, matching the development of EVs.
High-end positioning: Preferred for mid-to-high-end models, new energy vehicles and precision systems, with a good balance of performance and cost.
