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High clarity and excellent optical transparency for premium aesthetic performance.
Outstanding abrasion resistance and mechanical toughness for demanding dynamic applications.
Good low-temperature flexibility down to –30 °C with retained elasticity.
Excellent melt processability via extrusion, injection molding, and blow molding.
Compatible with common TPU processing equipment and supports efficient cycle times.
Medical tubing and fluid delivery systems requiring biocompatibility support.
Consumer electronics protective cases and wearable device components.
Automotive interior trim parts including soft-touch overlays and gaskets.
High-performance sporting goods such as ski boot cuffs and protective padding.
Industrial hoses and flexible connectors exposed to repeated flexing.
| Chemical Type | Thermoplastic Polyurethane (TPU) — Polyester-based |
| Product Form | Pellets |
| Appearance | Natural, translucent granules |
| Primary Applications | Flexible molded and extruded components requiring clarity and resilience |
| Key Features | High clarity, abrasion resistance, low-temperature flexibility |
| Processing Method | Extrusion, injection molding, blow molding |
| Shore A Hardness (ASTM D2240) | ~94 A |
| Specific Gravity (ASTM D792) | 1.20–1.22 |
Q1: What is the primary function of Lubrizol GP52DB NAT 023/25 in TPU formulations?
A: GP52DB NAT 023/25 is a specialized processing aid and surface modifier designed to improve melt flow, reduce extrusion pressure, and enhance surface gloss and slip characteristics in thermoplastic polyurethane (TPU) compounds—without compromising mechanical integrity or thermal stability.
Q2: Is GP52DB NAT 023/25 compatible with all TPU chemistries (e.g., polyester-, polyether-, and polycaprolactone-based)?
A: Yes—it demonstrates broad compatibility across major TPU families, including aromatic and aliphatic grades. Performance optimization may vary depending on polymer polarity, molecular weight, and processing conditions; therefore, formulation-specific evaluation is recommended.
Q3: How does GP52DB NAT 023/25 affect the final TPU’s mechanical properties?
A: When used within typical dosage ranges, it maintains key mechanical attributes such as tensile strength, elongation at break, and tear resistance. Minor reductions in modulus may occur at higher loadings, but these are generally offset by improved processability and surface aesthetics.
Q4: Can GP52DB NAT 023/25 be used in applications requiring food contact compliance?
A: GP52DB NAT 023/25 is not pre-certified for food contact use. Its suitability for such applications depends on full regulatory assessment of the final compounded system—including migration behavior, intended use conditions, and applicable regional requirements.
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