Products

NAS 21

NAS® 21 is a styrene acrylic copolymer that can be used in a variety of applications demanding a strong, stiff water-clear plastic resin with excellent thermal stability. Food contact statements are available on request.

Key Features

  • High surface quality
  • Sterilisable(ETO, NO2, Irradiation)
  • Transparency
  • Low density
  • Water clear appearance

Applications

  • Water filters
  • Point-of-purchase displays
  • Food contact applications
  • Medical devices
  • Cosmetic packaging

  • Grade Version
  • Properties

    Properties of NAS 21

    Property, Test Condition Standard Unit Values
    Rheological Properties
    Melt Volume Rate 220 °C/10 kg ISO 1133 cm³/10 min 24
    Mechanical Properties
    Charpy Notched Impact Strength, 23° C ISO 179/1eA kJ/m² 1.5
    Charpy Unnotched, 23 °C ISO 179/1eU kJ/m² 12
    Izod Notched Impact Strength, 23 °C ISO 180/A kJ/m² 2.5
    Tensile Modulus ISO 527 MPa 3300
    Tensile Stress at Yield, 23 °C ISO 527 MPa 60
    Tensile Strain at Break, 23 °C ISO 527 % 2.5
    Flexural Modulus, 23 °C ISO 178 MPa 3400
    Flexural Strength, 23 °C ISO 178 MPa 100
    Hardness, Ball Indentation ISO 2039-1 MPa 168
    Thermal Properties
    Vicat Softening Temperature VST/B/50 (50N, 50 °C/h) ISO 306 °C 98
    Heat Deflection Temperature A; (annealed 4 h/80 °C; 1.8 MPa) ISO 75 °C 80
    Heat Deflection Temperature B; (annealed 4 h/80 °C; 0.45 MPa) ISO 75 °C 90
    Optical Properties
    Refractive Index, Sodium D Line ISO 489 - 1.57
    Haze ASTM D 1003 % 0.3
    Light Transmission at 550 nm ASTM D 1003 % 91.3
    Other Properties
    Density ISO 1183 kg/m³ 1080
    Moisture Absorption, Equilibrium 23 °C/50% RH ISO 62 % 0.1
    Processing
    Melt Temperature Range ISO 294 °C 200 - 240
    Mold Temperature Range ISO 294 °C 30 - 50
    Drying Temperature - °C 80
    Drying Time - h 2

    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 NAS 21

  • Safety Data Sheet