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Excellent abrasion resistance for demanding mechanical service environments.
High elasticity and recovery performance across a wide temperature range (–40 °C to +80 °C).
Good oil, grease, and hydrocarbon resistance suitable for industrial fluid-contact applications.
Processable via standard thermoplastic methods including extrusion, injection molding, and calendering.
Low moisture absorption ensuring dimensional stability in humid conditions.
Industrial hoses and hydraulic tubing requiring flexibility and pressure resistance.
Seals, gaskets, and dynamic sealing components in automotive and machinery systems.
Roller covers and conveyor belt components subject to high wear and impact.
Protective coatings and overmolded grips for hand tools and medical devices.
Flexible couplings and vibration-damping elements in precision equipment.
| Chemical Type | Thermoplastic Polyurethane (TPU), polyester-based |
| Product Form | Pellets |
| Appearance | Opaque, off-white to light beige granules |
| Density (g/cm³) | 1.20 – 1.23 |
| Melt Flow Index (230 °C / 5 kg) | 8 – 12 g/10 min |
| Hardness (Shore A) | 88 – 92 |
| Tensile Strength (MPa) | 35 – 42 |
| Elongation at Break (%) | 450 – 520 |
Q1: What is the primary application domain for Merquinsa 45-90/3?
A: Merquinsa 45-90/3 is a thermoplastic polyurethane elastomer specifically engineered for demanding extrusion and injection molding applications, particularly in flexible tubing, technical profiles, and soft-touch overmolding components where high elasticity, abrasion resistance, and consistent melt processability are required.
Q2: Is Merquinsa 45-90/3 suitable for food-contact or medical-grade applications?
A: Merquinsa 45-90/3 is not pre-certified for food-contact or medical use. Its suitability for such applications depends on full regulatory evaluation of the final processed part, including extraction testing and compliance verification against applicable regional requirements. Customers must conduct appropriate validation per their intended end-use and jurisdiction.
Q3: How does Merquinsa 45-90/3 compare to conventional TPU grades in terms of processing stability?
A: Merquinsa 45-90/3 offers enhanced thermal stability during extended melt residence, reducing risk of viscosity drift and gel formation—especially beneficial in high-output extrusion lines and multi-cavity injection molding. This is achieved through optimized polymer architecture and proprietary stabilizer integration.
Q4: Can Merquinsa 45-90/3 be blended with other polymers?
A: Yes, it demonstrates good compatibility with certain engineering thermoplastics (e.g., specific grades of PC, ABS, and PET) and can be used in alloy formulations to tailor stiffness-toughness balance. However, compatibility must be confirmed experimentally for each blend system, as phase separation may occur with incompatible resins.
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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
