Automotive TPU Resin | CVJ Boots, Bellows, Bushings, Hose Covers
Automotive TPU Resin Overview
Automotive TPU compounds organized by real part functions and service conditions. Choose the relevant application and jump to the right subpage: CVJ Boots & Steering Bellows, Bushings & Dampers, Hose & Wire-Harness Covers, or Interior Protection Parts.
Choose Your Path (Go to the Right Subpage)
Start with the dominant requirement. For multi-constraint projects (e.g., low temperature + grease resistance + ozone, or fatigue + blow molding stability), start from the closest path and request a combined shortlist via advanced functional tuning.
CVJ Boots & Steering Bellows
High-cycle flex parts where dynamic fatigue, repeated bending, grease resistance and low-temperature flexibility dominate selection.
- Cracking after repeated bending and torsion in real driving cycles
- Grease and lubricant contact that can soften or swell inferior systems
- Low-temperature stiffness increase leading to stress concentration
Bushings & Dampers
Elastomeric components where vibration damping, rebound control, abrasion and long-term stability under heat cycling matter most.
- Balancing softness and support without premature creep
- Stable dynamic modulus for consistent damping behavior over time
- Durability under heat cycling and mechanical loading
Hose & Wire-Harness Covers
Protective covers and sleeves where abrasion, cut resistance, fluid splash exposure, and process stability (extrusion/injection/blow molding) are key.
- Wear-through due to rubbing, vibration and contact with adjacent parts
- Exposure to oils, fuels, coolants or road contaminants (project-dependent)
- Stable surface quality and geometry for assembly-friendly parts
Interior Protection Parts
Interior protection components where appearance, touch/feel, scratch resistance and long-term aging stability drive the compound choice.
- Scuffing and scratch visibility on high-contact areas
- Stable appearance and mechanical behavior after heat/UV aging (project-dependent)
- Processing consistency to maintain surface uniformity
Typical Data (Reference Only)
Values vary by formulation and package. Always confirm on finished parts under your service conditions and validation plan.
| System | Typical Positioning | Density (g/cm³) | Hardness | Tensile (MPa) | Elongation (%) | Abrasion (mg) | Processing |
|---|---|---|---|---|---|---|---|
| TPU-AUTO CVJ | CVJ boots & steering bellows (dynamic sealing) | 1.10–1.18 | 80A–95A | 30–45 | 500–650 | 20–60 | Injection / blow molding |
| TPU-AUTO NVH | Bushings & dampers (damping + durability) | 1.12–1.22 | 85A–55D | 25–45 | 350–600 | 30–90 | Injection molding |
| TPU-AUTO PRO | Hose & wire-harness covers (abrasion / cut) | 1.12–1.20 | 90A–60D | 30–55 | 350–550 | 15–60 | Extrusion / injection |
| TPU-AUTO INT | Interior protection parts (appearance + feel) | 1.10–1.18 | 75A–95A | 25–40 | 450–650 | 40–120 | Injection molding |
| TPU-AUTO ADV | Multi-constraint custom (system-level balancing) | 1.10–1.30 | 80A–75D | 25–60 | 300–650 | 15–120 | Injection / extrusion |
| TPU-AUTO ECO | Cost-optimized direction (project-dependent) | 1.10–1.20 | 85A–55D | 22–40 | 350–600 | 25–120 | Injection / extrusion |
Note: Data for reference only. Exact performance depends on part design, additive packages, processing window and validation plan.
Customization Options (Project-Focused)
Beyond standard grade families, automotive TPU compounds can be tuned around real failure risks, service conditions and production constraints. Typical customization directions include:
Flex & Fatigue Life
- Flex-fatigue margin for dynamic bellows and boots
- Tear and notch resistance around clamps and grooves
- Low-temperature flexibility (project-dependent)
Wear & Abrasion
- Abrasion and cut resistance for covers and routing zones
- Low friction / anti-squeak options for contact interfaces
- Surface integrity under debris and vibration
Oil / Grease / Chemical
- Resistance to grease, oils, coolant mist (project-dependent)
- Maintain properties after heat + chemical exposure
- Balance with softness and fatigue performance
Hydrolysis & Water Exposure
- Hydrolysis resistance for humid / splash conditions
- Property retention after aging cycles
- Balance with abrasion and damping needs
Weathering & Heat Aging
- Heat aging stability for engine-bay proximity
- Ozone / UV weathering options (project-dependent)
- Color stability and surface retention
Interior Sensory Requirements
- Low odor / low fogging options (project-dependent)
- Soft-touch feel and scratch/mar resistance tuning
- Stable processing window for consistent appearance
Note: Customization scope depends on part design, target requirements and validation plan. For multi-constraint projects, we recommend starting from the closest application page and requesting an advanced functional shortlist.
Request Samples / TDS
For technical or application-specific questions, please use the inquiry form on the right (Leave Your Message).
Share your part type, target hardness range, service conditions (temperature, grease/oil, abrasion), and processing method. We will recommend a shortlist and provide TDS/SDS for trials.
What should you do next?
If your project fits clearly into one category above, jump to the relevant subpage. If you face multiple constraints or repeated trial failures, start from Advanced Functional.
