Automotive TPU Resin | CVJ Boots, Bellows, Bushings, Hose Covers
Automotive TPU Resin – Overview & Applications
TPU for CVJ boots, steering bellows, bushings, dampers, hose covers and protection parts.
Chemdo supplies automotive-grade TPU for CVJ boots & steering bellows, suspension bushings & dampers,
hose & wire-harness covers, and interior dust covers and small protection parts. Grades focus on low-temperature flexibility, abrasion resistance, hydrolysis and oil resistance for under-body and under-hood environments.
Low-Temperature Flexibility
Abrasion Resistant
Hydrolysis & Oil Resistant
Shore 80A–52D
Abrasion Resistant
Hydrolysis & Oil Resistant
Shore 80A–52D
Where to Use (Quick Map)
| Automotive Part | Recommended TPU Series | Typical Hardness | Key Benefits | Learn More |
|---|---|---|---|---|
| CVJ Boots & Steering Bellows | TPU-AUTO 85A / 90A Flex | 80A–95A | Low-temperature flexibility, grease resistance, fatigue life | Boots & Bellows → |
| Bushings & Dampers | TPU-AUTO 95A / 45D Tough | 95A–52D | High load-bearing, rebound, abrasion and tear resistance | Bushings & Dampers → |
| Hose & Wire-Harness Covers | TPU-AUTO Hose Series | 85A–45D | Flexible, kink-resistant, hydrolysis and fuel/oil resistant | Hose Covers → |
| Interior Protection Parts | TPU-AUTO Interior Series | 80A–40D | Soft-touch, scratch resistance, low fogging | Interior Parts → |
Automotive TPU – Grade Portfolio
| Segment | Hardness Range | Key Properties | Suggested Grades |
|---|---|---|---|
| CVJ Boots & Bellows | 80A–95A | Low-temperature flex, grease resistance, fatigue resistance | TPU-AUTO 85A Flex, TPU-AUTO 90A Flex, TPU-AUTO 95A Flex |
| Bushings & Dampers | 95A–52D | High modulus, rebound, compression set performance | TPU-AUTO 95A Tough, TPU-AUTO 45D Tough, TPU-AUTO 52D Tough |
| Hose & Wire-Harness Covers | 85A–45D | Hydrolysis, fuel/oil resistance, flexibility, abrasion resistance | TPU-AUTO Hose 90A, TPU-AUTO Hose 40D |
| Interior Dust/Protection Parts | 80A–40D | Soft-touch, scratch resistance, low fogging and VOC level | TPU-AUTO Interior 85A, TPU-AUTO Interior 45D |
Automotive TPU – Grade Data Sheet
| Grade | Positioning / Features | Density (g/cm³) | Hardness | Tensile (MPa) | Elongation (%) | Tear (kN/m) | Abrasion (mm³) |
|---|---|---|---|---|---|---|---|
| TPU-AUTO 85A Flex | CVJ boots & steering bellows, low-temperature flex | 1.18 | 85A | 30 | 500 | 70 | 30 |
| TPU-AUTO 90A Flex | Dust covers and bellows, oil/grease resistance | 1.19 | 90A | 32 | 480 | 75 | 28 |
| TPU-AUTO 95A Tough | Bushings & dampers, high load-bearing | 1.21 | 95A (~40D) | 35 | 420 | 85 | 25 |
| TPU-AUTO 45D Tough | Stiffer bushings, mounts and brackets | 1.22 | 45D | 38 | 350 | 90 | 23 |
| TPU-AUTO Hose 90A | Hose covers, wire harness protection, hydrolysis resistant | 1.20 | 90A | 32 | 450 | 75 | 26 |
| TPU-AUTO Interior 85A | Interior dust covers and small protection parts | 1.19 | 85A | 30 | 460 | 70 | 27 |
Note: Data for reference only. Custom specs available according to OEM drawings and test standards.
Key Features
- High abrasion and stone-chip resistance for under-body parts
- Low-temperature flexibility for CVJ boots and steering bellows
- Hydrolysis, fuel and oil resistance for under-hood and line covers
- Wide hardness range to cover flexible boots and stiff bushings
Typical Applications
CVJ Boots & Bellows
Low-Temp Flex
Grease Resistant
Bushings & Dampers
High Load
Shock Absorb
Hose & Harness Covers
Hydrolysis
Abrasion
Interior Protection Parts
Soft-Touch
Scratch Resistant
Customization Options
- Hardness: Shore 80A–52D for boots, bushings, covers and small parts
- Polyester / polyether backbone selection by fluid exposure and climate
- Grades for injection molding, blow molding and extrusion
- Color options: natural, black, and custom OEM colors with marking stripes
Why Choose Chemdo
- Multiple modification plants experienced in automotive TPU compounds
- Application recipe library organized by hardness, backbone and test method
- Support for aligning with OEM standards and third-party lab testing
- Stable supply into Vietnam, India, Indonesia and other emerging auto hubs
Target Markets
- Tier-2 / Tier-3 suppliers of CVJ boots, bellows and dust covers
- Molders of suspension bushings, small dampers and NVH parts
- Producers of hose covers, wire-harness sleeves and protection tubes
- Aftermarket factories making replacement boots and bushings
Request Samples / TDS
Need to match an existing rubber part or OEM drawing with TPU? Contact us for sample grades and technical data sheets tailored to your target hardness, fluid exposure and test requirements.
Explore related materials:
Industrial TPU Overview |
Hose & Tube Material |
TPU Industrial Parts