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.
Steering Bellows
Bushings & Dampers
Hose & Harness Protection
Abrasion & Flex
Oil / Grease
Low-Temperature
Advanced Functional Custom
Choose Your Path (Go to the Right Subpage)
Start with the dominant constraint. For multi-constraint projects (e.g., wear + low temperature, oil/grease + fatigue, low odor + scratch resistance), start from the closest path and request a combined shortlist via advanced functional tuning.
CVJ Boots & Steering Bellows
Dynamic sealing bellows where flex-fatigue, abrasion, and grease/ozone exposure dominate selection.
Abrasion
Grease Resistance
Ozone / Aging
- Cracking after repeated articulation (high-cycle flex)
- Wear-through at clamp / groove zones and debris abrasion
- Grease, road chemicals, ozone/aging: keep sealing integrity
Bushings & Dampers
NVH-focused elastomer parts where damping, compression set, and durability under heat and load dominate selection.
Compression Set
Dynamic Stiffness
Heat Aging
- Stiffness drift after heat aging (loss of damping)
- Permanent set under compression (loss of fit / rattle)
- Durability under oil splash, water, and cyclic loads
Hose & Wire-Harness Covers
Protective covers for hoses and harnesses where abrasion, cut resistance, and thermal/chemical exposure dominate selection.
Heat & Aging
Oil / Fuel Mist
Noise / Rattle Control
- Chafing wear at clips, brackets, and sharp edges
- Heat exposure near engine bay: maintain toughness and shape
- Oil, coolant, and road salt splash: keep surface integrity
Interior Protection Parts
Interior protection and contact parts where appearance, soft touch, low odor/fogging, and wear dominate selection.
Scratch / Wear
Low Odor
Color Stability
- Scratch / mar resistance for visible surfaces
- Low VOC / low fogging for cabin requirements (project-dependent)
- Surface feel tuning (matte/gloss, grip) and color stability
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
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.
