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Excellent abrasion resistance for extended service life in demanding mechanical environments.
Balanced hardness (Shore A 45) and elongation (>400%) enabling high flexibility with structural integrity.
Good low-temperature flexibility down to –30 °C, maintaining elasticity in cold-condition applications.
Outstanding oil and grease resistance, suitable for contact with hydrocarbon-based lubricants and fluids.
Processable via standard thermoplastic methods including extrusion, injection molding, and calendering.
Industrial hoses and pneumatic tubing requiring kink resistance and pressure stability.
Dynamic seals and gaskets for automotive and hydraulic systems.
Wear-resistant conveyor components such as scraper blades and modular belt segments.
Flexible protective sheathing for cables and wiring harnesses in mobile equipment.
Soft-touch grips and ergonomic overmolded parts for hand tools and medical devices.
| Chemical Type | Thermoplastic Polyurethane (TPU), polyester-based |
| Product Form | Pellets |
| Appearance | Off-white to light beige, free-flowing granules |
| Hardness (Shore A) | 45 ± 2 |
| Elongation at Break | ≥ 400 % |
| Tensile Strength | ≥ 27 MPa |
| Density | 1.18–1.22 g/cm³ |
| Melt Flow Index (230 °C / 2.16 kg) | 12–16 g/10 min |
Q1: What is the primary application domain for Merquinsa 45-40/27?
A: Merquinsa 45-40/27 is a thermoplastic polyurethane elastomer specifically engineered for demanding extrusion and injection molding applications, with strong suitability in flexible packaging films, medical tubing, and high-performance technical profiles requiring excellent melt stability and low-temperature flexibility.
Q2: How does Merquinsa 45-40/27 differ from standard aromatic TPU grades?
A: Unlike conventional aromatic TPUs, Merquinsa 45-40/27 features a tailored soft-segment composition and controlled hard-segment distribution, delivering enhanced hydrolytic resistance, improved clarity, and reduced yellowing tendency—especially under thermal processing and UV exposure.
Q3: Is Merquinsa 45-40/27 suitable for food-contact applications?
A: Yes, Merquinsa 45-40/27 is formulated to meet general requirements for food-contact use in accordance with relevant global regulatory frameworks; however, final compliance depends on the complete formulation, processing conditions, and intended end-use—validation testing is recommended for specific applications.
Q4: What drying conditions are recommended prior to processing?
A: To ensure optimal melt consistency and mechanical performance, it is strongly advised to dry Merquinsa 45-40/27 at 80–90 °C for a minimum of 3–4 hours using desiccant-assisted drying; residual moisture should be kept below 0.02% before extrusion or injection molding.
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E-mail: wangxingqiang@ericwchem.com
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