English
Español
tiếng việt
русский
Excellent balance of flexibility and high-temperature resistance up to 150 °C short-term.
Outstanding dynamic fatigue resistance for repeated bending and flexing cycles.
Good chemical resistance to oils, greases, and many automotive fluids.
High melt flow index enabling efficient processing via injection molding and extrusion.
Retains mechanical properties over a wide service temperature range (–40 °C to 130 °C).
Automotive air ducts and HVAC components requiring dimensional stability at elevated temperatures.
Powertrain grommets and vibration-damping bushings exposed to thermal cycling.
Industrial hose covers and reinforced tubing for fluid handling systems.
Consumer appliance parts such as flexible couplings and motor mounts demanding long-term creep resistance.
Medical device tubing connectors where biocompatibility-compliant processing is required (ISO 10993 evaluation support available).
| Chemical Type | Thermoplastic Polyester Elastomer (TPEE) |
| Product Form | Natural pellets |
| Appearance | Off-white, semi-crystalline granules |
| Primary Applications | Dynamic mechanical components, high-heat flexible parts |
| Key Features | High heat resistance, excellent fatigue life, good oil resistance |
| Processing Methods | Injection molding, extrusion, blow molding |
| Density (ASTM D792) | 1.21 g/cm³ |
| Melt Flow Rate (230 °C/2.16 kg, ASTM D1238) | 25 g/10 min |
Q1: What distinguishes Hytrel 4069 from other TPEE grades in the Hytrel portfolio?
A: Hytrel 4069 is a medium-hardness thermoplastic elastomer with balanced stiffness and flexibility, offering enhanced melt flow for improved processability in thin-wall injection molding and extrusion—particularly suited for dynamic applications requiring fatigue resistance and moderate chemical exposure tolerance.
Q2: Is Hytrel 4069 suitable for applications requiring repeated flexing or cyclic loading?
A: Yes—Hytrel 4069 exhibits excellent long-term flex fatigue resistance due to its phase-separated polyester-ether structure, making it well-suited for components such as bellows, gaskets, couplings, and automotive air ducts subjected to continuous mechanical deformation.
Q3: How does Hytrel 4069 perform under elevated temperature conditions?
A: Hytrel 4069 maintains useful mechanical properties at continuous use temperatures up to approximately 120 °C and offers short-term heat resistance beyond that range, supported by its crystalline polyester hard segments—making it appropriate for under-hood automotive parts and industrial housings where thermal stability is critical.
Q4: Can Hytrel 4069 be overmolded onto common engineering plastics like PP, ABS, or PC?
A: Hytrel 4069 achieves strong adhesion to many polar substrates—including polycarbonate (PC) and ABS—when properly processed; however, bonding to non-polar resins like polypropylene typically requires surface treatment or a compatibilizing tie-layer to ensure reliable interfacial strength.
Contact With Us:
E-mail: wangxingqiang@ericwchem.com
Have a Questions? Call Us:
Add:
Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
