Products

Styrolux 684D

The product line Styrolux® comprises clear styrene butadiene copolymers. The grades have in general an intrinsic toughness, are easy to process and work as modifiers and compatibilizers not only in polystyrene but in many other polymers, e.g. polyolefins. For all Styrolux® grades food contact statements are available upon request. Styrolux® 684D is a general purpose grade and can be used in injection molding for parts with enhanced toughness, in sheet and film extrusion as well as blow molding. Parts made of 684D reveal excellent printability.

Key Features

  • Easy processing
  • Well extrudable
  • Good printability
  • Sterilisable(ETO,NO2,Irradiation)
  • Transparency

Applications

  • Food contact applications
  • Medical devices
  • Rigid packaging
  • Toys, sports & leisure
  • Grade Version
  • Properties

    Properties of Styrolux 684D

    Property, Test Condition Standard Unit Values
    Rheological Properties
    Melt Flow Rate, 200 °C/5 kg ASTM D 1238 g/10 min 10
    Mechanical Properties
    Izod Notched Impact Strength, 23 °C (73 °F) ASTM D 256 ft-lb/in 0.8
    Instrumented Dart Impact (total energy) ASTM D 3763 in-lbs 196
    Instrumented Dart Impact (Peak force) ASTM D 3763 in-lbs 98
    Tensile Stress at Yield, 23 °C ASTM D 638 psi 3800
    Elongation, Failure ASTM D 638 % 250
    Tensile Modulus ASTM D 638 psi x 10³ 190
    Tensile Modulus (MD) ASTM D 882 psi 191000
    Tensile Modulus (TD) ASTM D 882 psi 171000
    Elongation at Break (MD) ASTM D 882 % 260
    Elongation at Break (TD) ASTM D 882 % 100
    Flexural Strength, 23 °C ASTM D 790 psi 4500
    Flexural Modulus, 23 °C ASTM D 790 psi x 10³ 170
    Hardness, Shore D ASTM D 2240 - 68
    Elemendorf Tear (MD) ASTM D 1922 lbs 0.56
    Elemendorf Tear (TD) ASTM D 1922 lbs 0.52
    Thermal Properties
    Vicat Softening Temperature, B/1 ( 120 °C/h, 10N) ASTM D 1525 °F 186
    DTUL @ 264 psi - Unannealed ASTM D 648 °F 158
    DTUL @ 66 psi - Unannealed ASTM D 648 °F 170
    Coefficient of Linear Thermal Expansion ASTM D 696 10-4/°F 0.72
    Electrical Properties
    Dielectric Constant at 106 CPS (1000000 Hz, 0,0394 in) ASTM D 150 - 2.5
    Volume Resistivity ASTM D 257 - >1013
    Surface Resistivity ASTM D 257 - >1014
    Optical Properties
    Refractive Index, Sodium D Line ASTM D 542 - 1.575
    Light Transmission at 550 nm ASTM D 1003 % 90
    Haze ASTM D 1003 % 1.5
    Other Properties
    Density (ASTM ) ASTM D 792 g/cm³ 1.01
    Water Absorption, Saturated at 23 °C ASTM D 570 % 0.07
    Oxygen Transmission Rate (23 °C/0% RH) ASTM D 3985 cc/100in²/day 8060
    Water Vapor Transmission Rate (WVTR) (23 °C/0% to 85% RH gradient) ASTM F1249-06 g/100in²/day 44.9
    Processing
    Linear Mold Shrinkage ASTM D 955 in/in 0.0065

    Typical values for uncolored products
    Please note that all processing data stated are only indicative and may vary depending on the individual processing complexities.
    Please consult our local sales or technical representatives for details.

  • Processing

    Processing of Styrolux 684D

  • Safety Data Sheet