Products

Styrolux 684D

Styrolux® 684D is a clear styrene-butadiene copolymer (SBC) used in injection molding for parts with enhanced toughness as well as in sheet and film extrusion and blow molding. Parts made of Styrolux® 684D reveal excellent printability.

Key Features

  • High clarity
  • Improved toughness
  • Good printability

Applications

  • Food and non-food packaging
  • Container, cups and lids
  • Toys
  • Extruded sheet and thin film
  • Medical devices
  • Blow moldings
  • 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 97.8
    Tensile Stress at Yield, 23 °C ASTM D 638 psi 3770
    Tensile Strain at Break, 23 °C 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
    Elmondorf Tear (MD) ASTM D 1922 lbs 0.56
    Elmondorf 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 - >1E13
    Surface Resistivity ASTM D 257 - >1E14
    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 D 792 - 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
    Melt Temperature Range °F 356 to 482
    Mold Temperature Range °F 86 to 122

    Typical values for uncolored products

  • Processing

    Processing of Styrolux 684D

  • Safety Data Sheet