High-temperature processing (HTP) grade enabling stable melt flow and reduced thermal degradation during extrusion and injection molding.
Excellent hydrolytic stability, maintaining mechanical integrity in humid or aqueous environments over extended service life.
Outstanding abrasion resistance and dynamic fatigue performance, ideal for demanding cyclic-loading applications.
Good low-temperature flexibility with a glass transition temperature (Tg) optimized for balanced toughness and processability.
Compatible with standard TPU processing equipment and suitable for co-extrusion and multi-material bonding without adhesion promoters.
Automotive interior trim components including soft-touch overlays and flexible air ducts.
Industrial hoses and fluid transfer tubing requiring heat resistance and kink recovery.
Medical-grade tubing and non-implantable device housings compliant with ISO 10993 biocompatibility screening.
High-performance sporting goods such as ski boot cuffs, bicycle grips, and protective gear liners.
Consumer electronics protective casings and wearable device straps demanding skin-friendly feel and long-term elasticity.
| Chemical Type | Thermoplastic Polyurethane (TPU), polyester-based |
| Product Form | Pellets |
| Appearance | Natural, translucent granules |
| Primary Applications | Extrusion, injection molding, blow molding |
| Key Features | High-temperature processing capability, hydrolysis resistance, excellent rebound resilience |
| Benefits | Reduced scrap rates in high-speed processing, extended part lifetime in humid conditions, consistent surface quality |
| Processing Temperature Range | 190–230 °C (melt) |
| Storage Recommendation | Store in original sealed packaging at <25 °C and <50% RH |
Q1: What is the primary functional role of Lubrizol 58212 NAT 021/022 in TPU formulations?
A: Lubrizol 58212 NAT 021/022 is a high-temperature performance (HTP) thermoplastic polyurethane elastomer modifier designed to enhance melt processability, reduce extrusion torque, and improve surface finish—particularly in demanding compounding and injection molding applications.
Q2: Is this product compatible with aromatic and aliphatic TPU base resins?
A: Yes, Lubrizol 58212 NAT 021/022 demonstrates broad compatibility across both aromatic and aliphatic TPU systems, supporting formulation flexibility without compromising mechanical integrity or thermal stability.
Q3: How does Lubrizol 58212 NAT 021/022 differ from standard TPU processing aids?
A: Unlike conventional lubricants, it functions as a reactive or semi-reactive compatibilizer that integrates into the TPU matrix at elevated processing temperatures, offering sustained performance retention and reduced plate-out compared to non-polar additives.
Q4: What are recommended processing conditions for optimal dispersion?
A: Optimal dispersion is typically achieved under standard TPU processing conditions—melt temperatures between 180 °C and 230 °C, with sufficient residence time and shear input during extrusion or injection molding. Pre-drying is recommended if moisture sensitivity is a concern in the host system.
Q5: Can Lubrizol 58212 NAT 021/022 be used in medical or food-contact TPU applications?
A: While the product is formulated for high-performance industrial TPU modification, its suitability for regulated end uses—including medical devices or food-contact applications—requires formal evaluation against applicable regulatory requirements and full formulation testing by the end-user.
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