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Excellent abrasion resistance for extended service life in demanding mechanical environments.
Outstanding low-temperature flexibility down to –40 °C without significant loss of elasticity.
Good oil and grease resistance, maintaining dimensional stability during intermittent hydrocarbon exposure.
High melt flow index enabling efficient processing via extrusion, injection molding, and blow molding.
Excellent transparency and clarity suitable for optical-grade and aesthetic applications.
Automotive interior trim components including instrument panel overlays and soft-touch surfaces.
Medical tubing and fluid-handling devices requiring biocompatibility and kink resistance.
High-performance sporting goods such as ski boot cuffs, bicycle grips, and protective gear linings.
Industrial hoses and pneumatic seals where dynamic flexing and pressure retention are critical.
Consumer electronics casings and wearable device straps requiring skin-friendly softness and durability.
| Chemical Type | Aliphatic polyester-based thermoplastic polyurethane |
| Product Form | Pellets (free-flowing, uniform cylindrical granules) |
| Appearance | Translucent to semi-transparent, light amber tint |
| Hardness (Shore A) | 65 ± 2 |
| Melt Flow Index (2.16 kg, 200 °C) | 12–16 g/10 min |
| Density | 1.18–1.20 g/cm³ |
| Moisture Content (as received) | ≤ 0.05 wt% |
| Processing Temperature Range | 180–220 °C |
Q1: What are the key processing methods suitable for HF-4065D?
A: HF-4065D is designed for melt-processing techniques including extrusion, injection molding, and blow molding. Its balanced melt viscosity and thermal stability support consistent flow and good surface finish across these methods, especially in thin-wall or high-detail applications.
Q2: How does HF-4065D compare to standard polyester-based TPUs in terms of hydrolytic stability?
A: As a polyether-based TPU elastomer, HF-4065D offers significantly improved resistance to hydrolysis compared to conventional polyester TPUs—particularly under warm, humid conditions or prolonged water exposure—making it well-suited for outdoor, marine, or long-term sealing applications.
Q3: Can HF-4065D be used in overmolding applications with common thermoplastics like PP, ABS, or PC?
A: Yes, HF-4065D demonstrates good adhesion to several engineering thermoplastics when processed under optimized temperature and mold surface conditions. Bond strength is enhanced by proper substrate drying and controlled interfacial temperatures—compatibility should be validated per specific part geometry and cycle parameters.
Q4: Is HF-4065D suitable for applications requiring flexibility at low temperatures?
A: Yes, HF-4065D retains excellent low-temperature flexibility and impact resilience down to approximately −30 °C, owing to its soft-segment polyether structure. This makes it appropriate for dynamic components exposed to cold environments, such as automotive seals or flexible industrial hoses.
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E-mail: wangxingqiang@ericwchem.com
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
