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.

Key Features

  • Sparkling clarity
  • Low density
  • Ease of processing
  • Gamma & ETO sterilizable
  • Meets USP XXIII specifications for Class VI plastics
  • UL 94 HB approved

Applications

  • Point of purchase displays
  • Reusable drinkware
  • Medical devices
  • Toys
  • Office accessories
  • Appliances
  • Grade Version
  • Properties

    Properties of NAS 21

    Property, Test Condition Standard Unit Values
    Rheological Properties
    Melt Flow Rate, 200 °C/5 kg ASTM D 1238 g/10 min 1.9
    Melt Volume Rate, 220 °C/10 kg ISO 1133 cm³/10 min 24
    Mechanical Properties
    Izod Notched Impact Strength, 23 °C (73 °F) ASTM D 256 ft-lb/in 0.4
    Tensile Stress at Yield, 23 °C ASTM D 638 psi 8400
    Tensile Modulus ASTM D 638 psi x 10³ 470
    Elongation, Failure ASTM D 638 % 2.1
    Flexural Strength, 23 °C ASTM D 790 psi 14100
    Flexural Modulus, 23 °C ASTM D 790 psi x 10³ 450
    Hardness, Rockwell ASTM D 785 M scale 70
    Charpy Notched Impact Strength, 23° C ISO 179 kJ/m² 1.5
    Charpy Unnotched, 23 °C ISO 179 kJ/m² 12
    Thermal Properties
    Vicat Softening Temperature, B/1 ( 120 °C/h, 10N) ASTM D 1525 °F 222
    Optical Properties
    Refractive Index, Sodium D Line ASTM D 542 - 1.57
    Light Transmission at 550 nm ASTM D 1003 % 91.3
    Haze ASTM D 1003 % 0.3
    Other Properties
    Density (ASTM ) ASTM D 792 g/cm³ 1.08
    Water Absorption, Saturated at 23 °C ASTM D 570 % 0.1
    Processing
    Melt Temperature Range - °F 410 - 470
    Mold Temperature Range - °F 90 - 140
    Rear Temperature Range - °F 360 - 420
    Middle Temperature Range - °F 390 - 450
    Front Temperature Range - °F 410 - 470
    Drying Temperature - °F 180
    Drying Time - h 2
    Max Service Temperature - °F 500

    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