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Excellent abrasion resistance for demanding mechanical service conditions.
High elasticity and outstanding rebound resilience across a wide temperature range.
Good processability via injection molding and extrusion without requiring drying.
Hydrolysis-resistant formulation suitable for humid or wet environments.
Low-temperature flexibility down to –40 °C while maintaining dimensional stability.
Industrial rollers and conveyor belts requiring high wear endurance.
Dynamic automotive components including dust caps, grommets, and suspension bushings.
Flexible hoses and tubing for pneumatic and fluid transfer systems.
Protective covers and seals for outdoor equipment and agricultural machinery.
Specialty footwear midsoles and outsoles where energy return and durability are critical.
| Chemical Type | Thermoplastic Polyurethane (TPU), polyester-based |
| Product Form | Pellets |
| Appearance | Off-white to light beige, free-flowing granules |
| Primary Applications | Dynamic elastomeric parts, industrial wear components, flexible seals |
| Key Features | Abrasion resistance, hydrolytic stability, low-temperature flexibility |
| Processing Methods | Injection molding, extrusion, blow molding |
| Density (ISO 1183) | 1.18–1.20 g/cm³ |
| Melt Flow Index (ISO 1133, 230 °C/5 kg) | 10–14 g/10 min |
Q1: What is the primary function of BASF KONZ 208/F in thermoplastic polyurethane (TPU) formulations?
A: KONZ 208/F is a specialized processing aid and surface modifier designed to improve melt flow, reduce extrusion die buildup, and enhance surface gloss and slip characteristics in TPU compounds—without compromising mechanical performance or thermal stability.
Q2: Is KONZ 208/F compatible with common TPU grades, including aromatic and aliphatic types?
A: Yes, KONZ 208/F demonstrates broad compatibility with both aromatic and aliphatic TPU resins across major molecular weight ranges. It disperses homogeneously during standard melt compounding processes such as twin-screw extrusion.
Q3: How is KONZ 208/F typically incorporated into TPU production?
A: It is commonly added directly to the TPU base resin prior to extrusion or injection molding—either as a dry blend or via side-feeding during compounding. Pre-dispersed masterbatches are also feasible for enhanced dosing consistency.
Q4: Does KONZ 208/F affect the final TPU’s regulatory compliance for sensitive applications?
A: KONZ 208/F is formulated without intentionally added heavy metals, phthalates, or halogenated substances. While it is not itself certified for food contact or medical use, its composition supports formulation pathways that may meet relevant regional requirements when evaluated as part of the full compound.
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