Products

Styroflex 2G66

Styroflex® 2G66 is a styrene-butadiene block copolymer (SBC) with the properties of a thermoplastic elastomer (S-TPE) suitable for extrusion (blown and cast film) and for injection molding. Styroflex® 2G66 is also used for polymers modification and compatibilization. It is more polar than comparable SBS or SEBS grades and offers a combination of high resilience and toughness with good transparency and process stability.

Key Features

  • Excellent thermostability
  • Very high elongation at break
  • High resilience
  • High transparency
  • Regulatory compliant
  • High flow

Applications

  • Food packaging and films
  • Stretch hood/ stretch film
  • Impact modification / ESCR improvement
  • Compounding, compatibilization, recycling
  • Medical devices
  • Adhesives, Soft touch injection molding; toys, 2-K inj. mold.

Industries

  • Grade Version
  • Properties

    Properties of Styroflex 2G66

    Property, Test Condition Standard Unit Values
    Rheological Properties
    Melt Volume Rate, 200 °C/5 kg ISO 1133 cm³/10 min 13
    Mechanical Properties
    Charpy Notched Impact Strength, -30 °C ISO 179/1eA kJ/m² 2
    Tensile Stress at Yield, 23 °C ISO 527 MPa 4
    Tensile Strain at Yield, 23 °C ISO 527 % 5
    Tensile Modulus ISO 527 MPa 120
    Flexural Strength, 23 °C ISO 178 MPa 4
    Flexural Modulus, 23 °C ISO 178 MPa 140
    Hardness, Shore D ISO 868 - 34
    Hardness, Shore A ISO 868 - 84
    Elemendorf Tear (MD) - g 660
    Elemendorf Tear (TD) - g 816
    Thermal Properties
    Vicat Softening Temperature, B/1 ( 120 °C/h, 10N) ASTM D 1525 °C 35
    Electrical Properties
    Dielectric Constant (100 Hz) IEC 62631-2-1 - 2.5
    Volume Resistivity IEC 62631-3-1 Ω*m >1013
    Surface Resistivity IEC 62631-3-1 Ω 1015
    Optical Properties
    Refractive Index, Sodium D Line ISO 489 - 1.565
    Light Transmission at 550 nm ASTM D 1003 % 80
    Haze ASTM D 1003 % 5
    Other Properties
    Density ISO 1183 kg/m³ 998
    Water Absorption, Saturated at 23 °C ISO 62 % 0.07
    Oxygen Transmission Rate (23 °C/0% RH) - cc/m²/day 27.2

    Typical values for uncolored products

  • Processing

    Processing of Styroflex 2G66

  • Safety Data Sheet