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Excellent abrasion resistance for extended service life in demanding mechanical environments.
Outstanding oil and grease resistance, maintaining performance in lubricated or hydrocarbon-exposed conditions.
Good low-temperature flexibility down to –30 °C, ensuring reliable elasticity in cold climates.
High tensile strength and elongation at break, supporting dynamic load-bearing applications.
Excellent processability via extrusion, injection molding, and calendering with minimal thermal degradation.
Automotive interior trim components including instrument panel skins and door armrests.
Industrial hoses and pneumatic tubing requiring oil resistance and kink recovery.
Protective coatings and linings for conveyor belts in material handling systems.
Footwear midsoles and outsoles where resilience, comfort, and durability are critical.
Medical device tubing and ergonomic grips requiring biocompatibility-supporting formulation (ISO 10993 compatible base chemistry).
| Chemical Type | Thermoplastic Polyurethane (TPU), Polyester-based |
| Product Form | Natural-colored granules |
| Appearance | Free-flowing, translucent to semi-opaque pellets |
| Hardness (Shore A) | 90 ± 2 |
| Melt Flow Index (g/10 min, 210 °C/5 kg) | 12–16 |
| Density (g/cm³) | 1.20–1.23 |
| Tensile Strength (MPa) | ≥42 |
| Elongation at Break (%) | ≥500 |
Q1: What are the key processing advantages of WHT-6190 compared to conventional aromatic TPUs?
A: WHT-6190 offers improved melt stability and reduced viscosity sensitivity during extrusion and injection molding, enabling smoother processing at lower shear rates. Its optimized molecular architecture supports consistent flow behavior across a wider temperature window, reducing the risk of gel formation or surface defects in thin-walled parts.
Q2: Is WHT-6190 suitable for applications requiring long-term hydrolytic stability?
A: Yes — WHT-6190 is formulated with hydrolysis-resistant chemical linkages and demonstrates significantly enhanced resistance to moisture-induced degradation compared to standard polyester-based TPUs. It maintains mechanical integrity under humid and elevated temperature conditions typical of outdoor or automotive under-hood environments.
Q3: Can WHT-6190 be blended with other thermoplastic polymers, and what compatibility considerations apply?
A: WHT-6190 shows good miscibility with common engineering thermoplastics such as PC, ABS, and certain polyesters when used as a toughening modifier. Compatibility depends on thermal history and shear conditions during compounding; reactive compatibilizers may be beneficial for optimal interfacial adhesion in demanding blends.
Q4: How does WHT-6190 perform in low-temperature flexibility applications?
A: WHT-6190 retains excellent elasticity and impact resistance down to −30 °C, making it well-suited for flexible components exposed to cold climates or refrigerated logistics. Its soft-segment design balances crystallinity and chain mobility to minimize stiffening without sacrificing tensile recovery.
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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
