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Excellent abrasion resistance for extended service life in demanding mechanical environments.
High tensile strength and elongation at break, enabling robust performance under dynamic stress.
Good low-temperature flexibility down to –40 °C without significant loss of elasticity.
Outstanding oil, grease, and hydrocarbon resistance for reliable operation in industrial lubricant exposure.
Processable via standard thermoplastic techniques including injection molding, extrusion, and blow molding.
Industrial hoses and hydraulic tubing requiring high pressure and chemical resilience.
Dynamic seals and gaskets for automotive and machinery applications.
Wear-resistant components such as conveyor belts, scraper blades, and rollers.
Protective casings and overmolding for electronic enclosures and tool handles.
Specialty footwear soles and sports equipment parts demanding rebound and durability.
| Chemical Type | Thermoplastic Polyurethane (TPU), polyester-based |
| Product Form | Pellets |
| Appearance | Off-white to light beige granules |
| Shore A Hardness | 98 ± 1 |
| Density (g/cm³) | 1.20 – 1.22 |
| Melt Flow Index (230 °C / 5 kg) | 8 – 12 g/10 min |
| Processing Temperature Range | 190 – 230 °C |
| Key Features | High elasticity, excellent tear strength, good UV stability (with stabilizers) |
Q1: What is the primary processing method for BASF B98A 50 TPU Elastomer?
A: BASF B98A 50 is a thermoplastic polyurethane elastomer specifically designed for melt processing, with injection molding and extrusion being the most common industrial methods. It exhibits good melt stability and flow characteristics under standard TPU processing conditions.
Q2: How does B98A 50 compare to other TPU grades in terms of hardness and elasticity?
A: B98A 50 is a medium-hardness TPU grade with a Shore A hardness around 50, offering a balanced combination of flexibility, resilience, and load-bearing capability. It delivers higher elasticity and lower compression set than harder TPU grades, while maintaining better dimensional stability than softer alternatives.
Q3: Is B98A 50 suitable for applications requiring resistance to oils and greases?
A: Yes — as an aliphatic polyester-based TPU, B98A 50 offers good resistance to non-polar hydrocarbons, lubricating oils, and many greases. Its performance in such environments is superior to many polyether TPUs, though long-term exposure to aggressive solvents or high-temperature oil immersion may require application-specific validation.
Q4: Can B98A 50 be overmolded onto common engineering plastics?
A: B98A 50 demonstrates good adhesion to various substrates including polypropylene, ABS, and polycarbonate when processed under optimized temperature, mold surface, and drying conditions. Successful overmolding typically requires careful thermal management and substrate pre-treatment to ensure interfacial bonding integrity.
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E-mail: wangxingqiang@ericwchem.com
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