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Excellent melt processability for high-speed extrusion and injection molding.
Outstanding abrasion resistance and mechanical toughness at low temperatures.
Good hydrolytic stability, suitable for humid or outdoor service environments.
Low compression set with high elastic recovery for dynamic sealing and cushioning applications.
Compatible with common colorants and additives for customized formulation development.
Automotive interior trim components including instrument panel skins and door panels.
Industrial hoses and pneumatic tubing requiring flexibility and kink resistance.
High-performance footwear midsoles and outsoles demanding rebound and durability.
Medical device housings and non-invasive wearable components (ISO 10993-compatibility supported).
Consumer electronics protective casings and flexible connectors.
| Chemical Type | Thermoplastic Polyurethane (TPU), Polyester-based |
| Product Form | Pellets |
| Appearance | Off-white to light tan, free-flowing cylindrical pellets |
| Primary Applications | Extruded profiles, injection-molded parts, calendered films |
| Key Features | High elasticity, low-temperature flexibility, good UV resistance |
| Benefits | Reduced cycle time vs. conventional TPUs; improved surface finish; recyclable in closed-loop processing |
| Processing Method | Injection Molding, Extrusion, Blow Molding |
| Recommended Drying | 80–100 °C for 2–4 hours (moisture content < 0.05%) |
Q1: What is the primary function of Lubrizol TPU TT-2085A-B20 in thermoplastic polyurethane formulations?
A: Lubrizol TPU TT-2085A-B20 is a high-performance processing aid and surface modifier designed to enhance melt flow, reduce extrusion torque, and improve surface gloss and clarity in TPU compounds—particularly in demanding applications such as thin-gauge films and precision extrusions.
Q2: Is TT-2085A-B20 compatible with all major TPU chemistries (e.g., polyester- and polyether-based)?
A: Yes, TT-2085A-B20 demonstrates broad compatibility across aromatic and aliphatic polyester- and polyether-based TPUs. Compatibility should be confirmed experimentally for specific base resin grades and end-use requirements, especially where optical or long-term stability performance is critical.
Q3: How is TT-2085A-B20 typically incorporated into TPU processing?
A: It is generally added directly to the TPU resin via tumble blending or gravimetric feed prior to extrusion or injection molding. Pre-compounding is not required, and it remains stable under standard TPU processing temperatures without premature degradation or volatilization.
Q4: Does TT-2085A-B20 affect the mechanical properties of the final TPU product?
A: When used at recommended dosage levels, TT-2085A-B20 has minimal impact on tensile strength, elongation, or hardness. In some cases, improved dispersion and reduced internal stress may even contribute to more consistent mechanical performance across production batches.
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