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High elasticity and excellent rebound resilience for dynamic sealing and cushioning applications.
Good processability via injection molding and extrusion, with low mold fouling and fast cycle times.
Outstanding soft-touch feel and skin-friendly surface, suitable for consumer-facing components.
Enhanced thermal stability up to 120 °C short-term exposure without significant property degradation.
Halogen-free formulation compliant with RoHS and REACH regulatory requirements.
Soft-grip overmolding for power tools, hand-held appliances, and medical device housings.
Seals and gaskets in automotive interior trim and HVAC systems.
Flexible tubing and bellows for fluid handling in non-pressurized industrial equipment.
Consumer electronics accessories including protective cases, stylus grips, and wearable interfaces.
Household appliance components such as dishwasher door seals and blender jar gaskets.
| Chemical Type | Thermoplastic Elastomer (TPE), SEBS-based |
| Product Form | Pellets |
| Appearance | Light beige, free-flowing granules |
| Hardness (Shore A) | 70 ± 3 |
| Density (g/cm³) | 0.91 ± 0.01 |
| Melt Flow Rate (230 °C/2.16 kg, g/10 min) | 25–35 |
| Tensile Strength (MPa) | 8–10 |
| Elongation at Break (%) | 450–550 |
Q1: What is SK EP1070B/N TPE and how does it differ from conventional plasticizers?
A: SK EP1070B/N TPE is a non-phthalate, high-molecular-weight thermoplastic elastomer modifier designed to enhance flexibility, processability, and low-temperature performance in TPE, TPR, and TPV formulations. Unlike traditional low-MW plasticizers, it offers superior migration resistance and long-term stability due to its polymeric structure and compatibility with styrenic and olefinic base polymers.
Q2: Is SK EP1070B/N TPE suitable for food-contact or medical-grade applications?
A: SK EP1070B/N TPE is formulated without regulated phthalates, heavy metals, or known allergens, and is commonly selected for applications requiring improved regulatory alignment. However, final compliance with food-contact or medical regulations depends on the full formulation, processing conditions, and end-use validation — users must conduct appropriate testing and consult applicable regional requirements before claiming compliance.
Q3: How should SK EP1070B/N TPE be incorporated into TPE compounds?
A: It is typically added during compounding via twin-screw extrusion or internal mixing, either pre-blended with the base polymer or introduced downstream. Good dispersion is achieved at standard melt temperatures (160–220 °C), and dosage generally ranges from 0.1% to 2% by weight depending on the desired balance of elasticity, hardness reduction, and surface feel.
Q4: Does SK EP1070B/N TPE affect the recyclability or reprocessing behavior of TPEs?
A: As a polymeric additive with thermal stability matching common TPE matrices, SK EP1070B/N TPE supports multiple processing cycles without significant degradation or volatilization. It maintains compatibility during regrind incorporation and does not hinder standard TPE recycling streams when used within recommended dosage ranges.
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E-mail: wangxingqiang@ericwchem.com
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