Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

SK EP9170B/N TPE

SK EP9170B/N is a high-performance thermoplastic elastomer (TPE) from SK’s EP series, offering excellent processability, soft-touch feel, and superior adhesion to PP/ABS substrates. It delivers balanced hardness (~90A), good tensile strength, and low-temperature flexibility, ideal for automotive interior trims, grips, and consumer electronics housings. RoHS-compliant and injection-moldable.
  • sk ep9170b n tpe_16c45b1f
  • sk ep9170b n tpe_16c45b1f

Features Of SK EP9170B/N TPE

  1. Thermoplastic elastomer based on SEBS (Styrene-Ethylene/Butylene-Styrene) copolymer matrix for excellent elasticity and resilience.

  2. Halogen-free formulation meeting stringent environmental and safety standards including RoHS and REACH compliance.

  3. Outstanding processability via injection molding and extrusion with low melt viscosity and minimal thermal degradation.

  4. Superior soft-touch surface feel and high abrasion resistance for premium end-user applications.

  5. Good adhesion to polypropylene (PP) and polyethylene (PE), enabling reliable two-component overmolding.

Typical Applications Of SK EP9170B/N TPE

  1. Automotive interior trim components, including gear knobs, armrest covers, and dashboard soft-touch overlays.

  2. Consumer electronics housings and protective grips for power tools, toothbrushes, and handheld devices.

  3. Medical device grips and ergonomic handles requiring biocompatibility-supporting material history (ISO 10993 pre-screened).

  4. Household appliance control panels and tactile buttons demanding long-term UV stability and color retention.

  5. Packaging closures and squeezable containers requiring flexibility, seal integrity, and food-contact suitability (FDA-compliant grades available upon request).

Specifications Of SK EP9170B/N TPE

Chemical TypeSEBS-based Thermoplastic Elastomer
Product FormNatural-colored pellets
AppearanceOpaque, uniform cylindrical pellets
Hardness (Shore A)90 ± 3
Melt Flow Rate (230°C / 2.16 kg)12–18 g/10 min
Density0.98–1.02 g/cm³
Continuous Use Temperature−40°C to +70°C
Key FeaturesHalogen-free, recyclable, PP/PE bondable, low extractables


SK EP9170B/N TPE – Frequently Asked Questions (FAQ)

Q1: What is SK EP9170B/N TPE and how does it differ from conventional TPEs?

A: SK EP9170B/N TPE is a specialized thermoplastic elastomer formulated for enhanced processability and surface aesthetics in precision-molded applications. Unlike many general-purpose TPEs, it offers improved melt stability during extrusion and injection molding, along with reduced plate-out tendency on tooling surfaces.


Q2: Is SK EP9170B/N TPE suitable for food-contact or medical-grade applications?

A: SK EP9170B/N TPE is not pre-certified for food-contact or medical use. Its suitability for such applications depends on full formulation review, end-product processing conditions, and compliance verification with relevant regional regulatory frameworks. Customers must conduct appropriate migration testing and obtain third-party validation if targeting regulated markets.


Q3: How should SK EP9170B/N TPE be dried prior to processing?

A: To ensure optimal processing performance and part quality, SK EP9170B/N TPE should be dried using desiccant-assisted hot-air drying. Recommended conditions are typically 70–80 °C for 2–4 hours, depending on material history and ambient humidity. Moisture content should be maintained below 0.1 wt% before melting.


Q4: Can SK EP9170B/N TPE be blended with other polymers?

A: Yes — SK EP9170B/N TPE demonstrates good compatibility with several polyolefins (e.g., PP, HDPE) and certain engineering thermoplastics when used as a modifier. However, compatibility and phase morphology depend strongly on blend ratio, processing parameters, and the presence of compatibilizers. Pilot-scale trials are recommended to assess mechanical and aesthetic outcomes.



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