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Excellent abrasion resistance for demanding dynamic applications.
Outstanding low-temperature flexibility down to –40 °C.
Good hydrolytic stability, suitable for humid and wet environments.
High tensile strength and elongation at break for durable elastic performance.
Compatible with common processing methods including extrusion, injection molding, and blow molding.
Automotive interior trim components such as instrument panel skins and door armrests.
Industrial hoses and pneumatic tubing requiring flexibility and pressure resistance.
Consumer electronics protective casings and soft-touch overmolded grips.
Medical device tubing and non-invasive wearable sensor housings.
Footwear midsoles and outsoles requiring rebound resilience and wear resistance.
| Chemical Type | Thermoplastic Polyurethane (TPU), polyester-based |
| Product Form | Pellets |
| Appearance | Off-white to light tan, free-flowing pellets |
| Primary Applications | Extrusion, injection molding, blow molding |
| Key Features | Abrasion resistance, low-temperature flexibility, hydrolytic stability |
| Benefits | Enhanced part durability, process efficiency, design freedom for complex geometries |
| Density (g/cm³) | 1.20–1.22 |
| Melt Flow Index (230 °C / 2.16 kg) | 10–14 g/10 min |
Q1: What is the primary function of Lubrizol 58315 in TPU formulations?
A: Lubrizol 58315 is a specialty additive designed to enhance melt processability and reduce extrusion torque in thermoplastic polyurethane (TPU) compounds, particularly during high-speed film, sheet, or profile production.
Q2: Is Lubrizol 58315 compatible with all major TPU chemistries (e.g., polyester-, polyether-, and polycaprolactone-based)?
A: Yes — it demonstrates broad compatibility across aromatic and aliphatic TPU systems, including polyester-, polyether-, and polycaprolactone-based grades. Compatibility should be confirmed experimentally for specific formulations due to variations in molecular weight and hard-segment content.
Q3: How does Lubrizol 58315 affect the mechanical properties of finished TPU parts?
A: When used within recommended dosage ranges, it typically maintains key mechanical performance — including tensile strength, elongation at break, and tear resistance — while improving surface finish and reducing die buildup. Significant over-addition may impact hardness or low-temperature flexibility.
Q4: Can Lubrizol 58315 be used in applications requiring regulatory compliance for food contact or medical devices?
A: Lubrizol 58315 is not pre-approved for direct food-contact or implantable medical applications. Its use in regulated end uses requires full formulation-level evaluation and validation by the compounder or end-user against applicable regional requirements.
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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
