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Excellent soft-touch feel with balanced hardness (Shore A 70) for ergonomic and aesthetic product design.
Superior adhesion to polypropylene (PP) and polyethylene (PE) without primers or surface treatment.
Good processability in injection molding and extrusion, enabling high-cycle production stability.
Enhanced UV resistance and thermal aging performance for durable outdoor and automotive applications.
Halogen-free formulation compliant with RoHS and REACH regulatory requirements.
Automotive interior trim components including door armrests, center console covers, and dashboard overlays.
Consumer electronics housings and protective grips for power tools, appliances, and handheld devices.
Medical device overmolding for non-sterile, low-risk accessories requiring skin-friendly tactile properties.
Household appliance handles and control knobs requiring slip resistance and long-term flexibility.
Packaging closures and dispensing systems where soft-seal functionality and recyclability are critical.
| Chemical Type | Thermoplastic Elastomer (TPE) — Styrenic Block Copolymer (SBC)-based blend |
| Product Form | Pellets |
| Appearance | Opaque beige granules |
| Hardness (Shore A) | 70 ± 3 |
| Melt Flow Rate (200 °C / 5 kg) | 12–16 g/10 min |
| Density | 0.90–0.92 g/cm³ |
| Primary Applications | Overmolding on PP/PE substrates; soft-touch functional parts |
| Key Features | Primerless adhesion, halogen-free, good thermal stability up to 110 °C |
Q1: What is the primary application domain for Hyundai EP1070B/8901 TPE?
A: Hyundai EP1070B/8901 TPE is primarily engineered for soft-touch overmolding and functional elastomeric components in automotive interior systems, including control knobs, armrest covers, and trim bezels requiring consistent tactile response and long-term dimensional stability.
Q2: How does EP1070B/8901 perform in terms of adhesion to common thermoplastics like PP or ABS?
A: This grade demonstrates strong inherent adhesion to polypropylene (PP) and modified ABS substrates without requiring primer or surface treatment, thanks to its tailored polarity and melt compatibility—making it well-suited for two-shot injection molding processes.
Q3: Is EP1070B/8901 suitable for applications requiring low-temperature flexibility?
A: Yes, it retains good elasticity and impact resistance down to -30 °C, supporting reliable performance in automotive environments exposed to seasonal temperature extremes, though final behavior depends on part geometry and processing conditions.
Q4: What are the recommended drying and processing conditions?
A: Prior to processing, drying at 70–80 °C for 2–4 hours is recommended to achieve moisture levels below 0.05%. Melt temperature should typically range between 180–210 °C, with mold temperatures maintained at 25–45 °C for optimal surface finish and cycle time balance.
Q5: Can EP1070B/8901 be colored or compounded with additives?
A: Yes, it accepts standard masterbatches and liquid colorants compatible with TPEs. UV stabilizers, antistatic agents, and mineral fillers can also be incorporated during compounding, though formulation adjustments may be needed to maintain flow and adhesion characteristics.
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