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Excellent soft-touch feel with balanced hardness (Shore A 55)
Good processability via injection molding and extrusion
Enhanced thermal stability for consistent performance during high-speed processing
Low extractables and compliant with ISO 10993-5 for medical-grade safety
Superior adhesion to polypropylene (PP) and polyethylene (PE) substrates
Medical device components including grips, seals, and tubing connectors
Automotive interior trim parts such as soft-touch dashboards and door panels
Consumer electronics housings and protective overmolded casings
Household appliance handles and ergonomic control knobs
Packaging closures requiring flexible, resealable functionality
| Chemical Type | Thermoplastic Elastomer (TPE), Styrenic Block Copolymer (SBC)-based |
| Product Form | Pellets |
| Appearance | Off-white to light beige, free-flowing granules |
| Hardness (Shore A) | 55 ± 2 |
| Melt Flow Rate (200 °C / 5 kg) | 22–28 g/10 min |
| Density | 0.90–0.92 g/cm³ |
| Primary Applications | Overmolding, soft-touch finishing, medical device assembly |
| Key Features | Non-toxic, halogen-free, RoHS-compliant |
Q1: What is the primary functional role of SK 1055BM/NM TPE in polymer formulations?
A: SK 1055BM/NM TPE is a thermoplastic elastomer designed primarily as a compatibilizer and impact modifier—especially for polyolefin-based blends. It enhances interfacial adhesion between immiscible polymers and improves toughness without significantly compromising melt processability.
Q2: Is SK 1055BM/NM TPE suitable for food-contact or medical-grade applications?
A: SK 1055BM/NM TPE is not pre-certified for direct food-contact or medical use. Its suitability for such applications depends on final formulation, processing conditions, and regulatory review by the end-user. Customers must conduct full compliance testing per applicable regional requirements.
Q3: How does SK 1055BM/NM TPE perform under thermal processing conditions?
A: This grade exhibits good thermal stability during standard extrusion and injection molding processes. It remains stable up to typical processing temperatures for polyolefins (generally below 230 °C), with minimal degradation or volatiles evolution when processed under controlled, oxygen-limited conditions.
Q4: Can SK 1055BM/NM TPE be used in combination with other elastomers or fillers?
A: Yes—it is commonly blended with EPDM, SEBS, and various mineral fillers to tailor flexibility, hardness, and surface feel. Compatibility should be verified empirically, as performance may vary depending on base resin polarity, filler surface treatment, and mixing sequence.
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E-mail: wangxingqiang@ericwchem.com
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
