Longyixing Chemicals Co., Ltd

TPE Auto parts

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TPE TPE Auto parts

TPE for auto parts


Thermoplastic Elastomer (TPE) is widely used in automotive interior, exterior, sealing, and electric vehicle components due to its excellent flexibility, durability, and processing efficiency. TPE materials offer outstanding weather resistance, impact resistance, low VOC performance, and excellent sealing properties, making them an ideal alternative to traditional rubber materials. They are commonly used in automotive trims, seals, gaskets, soft-touch interior parts, cable protection systems, and EV battery sealing applications, helping manufacturers achieve lightweight, sustainable, and high-performance vehicle designs.

1. Automotive Exterior Applications

Key Features & Benefits

  • Excellent Impact Resistance: Absorbs and dissipates energy from road debris and minor collisions, protecting vehicle body panels from damage.

  • Outstanding Weatherability and UV Resistance: Maintains structural integrity and color stability under prolonged exposure to sunlight, rain, and temperature extremes.

  • Lightweight Compared with Traditional Rubber Materials: Contributes to overall vehicle weight reduction, supporting improved fuel efficiency and lower emissions.

  • Good Colorability and Surface Appearance: Achieves high-quality, Class-A surface finishes with precise color matching to vehicle body paint.

  • Recyclable and Environmentally Friendly: Thermoplastic nature enables reprocessing and recycling, aligning with automotive sustainability initiatives.

Typical Applications

  • Bumper Covers: Impact-absorbing front and rear bumper fascias.

  • Fascia Systems: Integrated exterior panels combining aesthetics and protection.

  • Rocker Panels: Lower body protection against stone chips and road spray.

  • Body Side Moldings: Decorative and protective trim along vehicle doors.

  • Window Encapsulation: Sealed glazing systems for improved acoustics and weather protection.

  • Exterior Trim Components: Grilles, wheel arch liners, and other decorative elements.

2. Automotive Interior Applications

Key Features & Benefits

  • Soft-Touch and Comfortable Feel: Delivers a premium tactile experience for surfaces that passengers frequently contact.

  • Low VOC and Low Odor Grades Available: Meets strict cabin air quality standards, minimizing off-gassing and unpleasant smells in enclosed vehicle interiors.

  • Excellent Abrasion and Scratch Resistance: Maintains a pristine appearance even after years of daily contact and use.

  • Good Compatibility for Overmolding on Polypropylene (PP): Creates strong, reliable bonds with PP substrates through two-shot or insert molding processes.

  • Wide Color Customization Options: Supports a broad palette of colors and textures to match diverse interior design themes.

Typical Applications

  • Instrument Panels: Soft-skin dashboard surfaces with integrated airbag compatibility.

  • Door Panels: Comfortable armrest areas and decorative inserts.

  • Center Consoles: Ergonomic surfaces for storage compartments and control interfaces.

  • Armrests: Cushioned and durable resting surfaces for driver and passengers.

  • Cup Holders: Non-slip inserts that secure beverages during transit.

  • Soft-Touch Grips and Handles: Steering wheel covers, gear shift knobs, and grab handles.

3. Automotive Sealing Systems

Key Features & Benefits

  • Excellent Sealing Performance: Provides reliable airtight and watertight barriers that protect vehicle interiors from wind, water, and dust ingress.

  • Low Compression Set: Maintains consistent sealing force over time, ensuring long-term dimensional stability even under sustained compression.

  • Superior Resistance to Heat, Ozone, and Aging: Withstands harsh under-hood temperatures and environmental exposure without cracking or degradation.

  • Flexible Across a Wide Temperature Range: Retains elasticity from -40 °C to +120 °C, ensuring year-round performance in all climates.

  • Easy Processing Through Extrusion and Injection Molding: Compatible with high-speed continuous extrusion for profile seals and precision injection molding for complex geometries.

Typical Applications

  • Door Seals: Primary and secondary seals preventing water and air leakage around doors.

  • Window Seals: Glazing run channels and belt-line seals for smooth window operation.

  • Trunk Seals: Perimeter seals ensuring dust-free and water-tight cargo compartments.

  • Weatherstrips: Multi-functional sealing profiles for body openings and closures.

  • Pipe Seals: Fluid-handling seals for HVAC and coolant systems.

  • Gaskets and Sealing Components: Custom-molded seals for engine covers, lighting assemblies, and electronic enclosures.

4. Electric Vehicle (EV) Components

Key Features & Benefits

  • Excellent Electrical Insulation Properties: Provides reliable dielectric protection for high-voltage battery systems and power electronics.

  • Effective Vibration and Noise Reduction: Dampens NVH (Noise, Vibration, and Harshness), enhancing the quiet cabin experience unique to electric vehicles.

  • Lightweight for Improved Energy Efficiency: Reduces component weight to maximize driving range and overall vehicle performance.

  • Good Resistance to Environmental Conditions: Withstands exposure to coolants, brake fluids, and thermal cycling without degradation.

  • Recyclable and Sustainable Material Solution: Supports the circular economy goals of the EV industry through material reprocessing and waste reduction.

Typical Applications

  • Battery Pack Seals: Critical seals ensuring IP67/IP68 ingress protection for lithium-ion battery enclosures.

  • Cable and Wire Protection Sleeves: Flexible conduits shielding high-voltage wiring harnesses from abrasion and heat.

  • Charging System Components: Seals and grips for charging ports, connectors, and plug handles.

  • Vibration Damping Parts: Isolators and mounts reducing drivetrain vibration transmission to the cabin.

  • Protective Covers: Durable enclosures for sensors, cameras, and electronic control units.

  • Electrical Insulation Components: Bushings, grommets, and boots for safe high-voltage connections.

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Longyixing Chemicals Co.,Ltd, with 10+ years of experience in TPU R&D and manufacturing, we proudly serve clients across 30+ countries. Our 20,000+ sqm advanced production facility houses 7 fully automated production lines, delivering an annual capacity of 50,000+ tons to meet your TPU needs efficiently and reliably.