K-Resin KR40

K-Resin® KR40 alone or in blends, can be extruded into sheet and thermoformed on conventional equipment at high output rates. The favorable economics of K-Resin SBC, along with high productivity, have made possible tough clear disposable drinking cups, lids and other packaging applications. INEOS Styrolution has several grades of K-Resin SBC tailored for your sheet extrusion needs.

Key Features

  • Combines Clarity and Toughness
  • Good Formability
  • High Surface Gloss


  • Thermoformed Blister Packs
  • Portion Packages
  • Cups and Lids


  • Grade Version
  • Properties

    Properties of K-Resin KR40

    Property, Test Condition Standard Unit Values
    Rheological Properties
    Melt Flow Rate, 200 °C/5 kg ASTM D 1238 g/10 min 10
    Mechanical Properties
    Instrumented Dart Impact (total energy) ASTM D 3763 in-lbs 380
    Tensile Stress at Yield, 23 °C ASTM D 638 psi 2240
    Tensile Strain at Break, 23 °C ASTM D 638 % 339
    Flexural Strength, 23 °C ASTM D 790 psi 3535
    Flexural Modulus, 23 °C ASTM D 790 psi x 10³ 122800
    Hardness, Shore D ASTM D 2240 - 60
    Thermal Properties
    Vicat Softening Temperature, B/1 ( 120 °C/h, 10N) ASTM D 1525 °F 145
    DTUL @ 264 psi - Annealed ASTM D 648 °F 117
    Optical Properties
    Light Transmission at 550 nm ASTM D 1003 % 90
    Other Properties
    Density ASTM D 792 lb/in³ 1.02

    Typical values for uncolored products

  • Processing

    Processing of K-Resin KR40

  • Safety Data Sheet