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TDS - CDB-300
For more information and technical
assistance contact:
Phillips Sumika Polypropylene Company
P.O. Box 4910
The Woodlands, TX 77387-4910
800.231.1212 ext 4849
Marlex® CDB-300
Engineered Thermoplastic Polyolefin, High Stiffness, Talc Filled

Applications:
  • Automotive Instrument Panels and Pillars
    ASTM Nominal Properties
    Property English SI Method
      Density 1.06 g/cc 1.06 g/cc ASTM D1505
      Melt Flow Rate, @ 230°C 19 g/10min 19 g/10min ASTM D1238
      Tensile Strength at Yield, 50 mm/min 3500 psi 24.1 MPa ASTM D638
      Flexural Modulus, Secant, 1.3 mm/min 340,000 psi 2340 MPa ASTM D790
      Notched Izod Impact Strength, @ 23°C No Break ft*lbf/in No Break J/m ASTM D256
      Notched Izod Impact Strength, @ -30°C 0.9 ft*lbf/in 48 J/m ASTM D256
      Heat Deflection Temperature, @ 0.455 MPa 249 °F 120 °C ASTM D648
      Heat Deflection Temperature, @ 1.82 MPa 153 °F 67 °C ASTM D648
      Rockwell Hardness, R Scale 70 70 ASTM D785

    Mechanical property testing has been performed on injection molded specimens molded.

    The nominal properties reported herein are typical of the product but do not relflect normal testing variance and therefore should not be used for specification purposes.

    Marlex® CDB-300
    Engineered Thermoplastic Polyolefin, High Stiffness, Talc Filled


    ISO Nominal Properties
    Property SI Method
      Density 1.07 g/cc ISO 1183
      Melt Flow Rate, @ 230°C 19 g/10min ISO 1133
      Tensile Strength at Yield, 50 mm/min 23 MPa ISO 527
      Flexural Modulus, 2.0 mm/min 2340 MPa ISO 178
      Notched Izod Impact Strength, @ 23°C 25 kJ/m2 ISO 180
      Notched Izod Impact Strength, @ -40°C 3.4 kJ/m2 ISO 180
      Heat Deflection Temperature, @ 0.455 MPa 116 °C ISO 75
      Heat Deflection Temperature, @ 1.82 MPa 67 °C ISO 75
      Rockwell Hardness, R Scale 70  ISO 2039

    Physical property testing performed on injection-molded specimens.
    The nominal properties reported herein are typical of the product but do not reflect normal testing variance and therefore should not be used for specification purposes.

    Marlex® CDB-300
    Engineered Thermoplastic Polyolefin, High Stiffness, Talc Filled


      Nominal Shrinkage, Injection Molding

    Shrinkage Factors:
    The shrinkage values provided below were obtained with simple plaques and are reported as nominal values. These values should be considered estimates given that resin shrinkage is influenced by several factors including part geometry, mold design, molding conditions, part cooling during and after molding. Consequently, the values given below cannot be used as absolute.

    Shrinkage Verification:
    Given that shrinkage is affected by many factors, it is the user’s responsibility to verify the shrinkage for their own mold design and molding conditions before cutting tool steel. If a similar tool is already present, run the material on this tool with normal process and handling conditions and determine the shrinkage. If such a tool is not available, finish only one core and cavity using estimated shrinkage values, staying steel safe. Based on the shrinkage measurements of parts from this core/cavity combination, make the necessary adjustments to the shrinkage factor before cutting additional cores and cavities. Remember to wait at least 48 hrs before measuring shrinkage. Also, be aware the heat aging (or annealing) after molding can affect shrinkage.
    Conditioning after Molding:
    • 48 hr at 23°C
    • 48 hr at 80°C
         		Nominal Shrinkage:
    • 0.7 to 0.9% (0.007 to 0.009 in/in)
    • 0.8 to 1.0% (0.008 to 0.010 in/in)
    The above test results are based on 150 x 90 x 3mm edge gated plaques (1 mm gate).

      Molding Guidelines

      General Processing Conditions for:  Injection Molding
    • Drying conditions:
      Temperature: 176 to 212°F (80 - 100°C)
      Time: 2 hours minimum, 4 hours maximum
      Device: Desiccant dryer.
      Moisture content: 0.1 wt% max.

    • Molding temperatures:
      Rear Temperature: 350 - 390°F (145 - 200°C)
      Middle Temperature: 410 - 455°F (210 - 235°C)
      Front and Nozzle Temps: 410 - 455°F (210 - 235°C)
      Stock Temperature: 375 - 475°F (191 - 246°C)
      Mold Temperature: 73 - 120°F (23 - 50°C)

    • Processing conditions:
      Suggested shot size: 50 to 70%
      First stage injection pressure: Maximize
      Screw speed: 30 to 60%
      Packaging pressure: Minimize
      Back Pressure: 50 to 150 psi

    • Other molding considerations:
      Melt temperature above 500°F (260°C) may cause resin degradation and changes to resin properties.
      To improve dispersion of color concentrates use a screw with a mixing zone or mixing nozzle.
    MSDS #CPC00282 Revision Date June, 2007
    Before using this product, the user is advised and cautioned to make its own determination and assessment of the safety and suitability of the product for the specific use in question and is further advised against relying on the information contained herein as it may relate to any specific use or application. It is the ultimate responsibility of the user to ensure that the product is suited and the information is applicable to the user's specific application. Phillips Sumika Polypropylene Company does not make, and expressly disclaims, all warranties, including warranties of merchantability or fitness for a particular purpose, regardless of whether oral or written, express or implied, or allegedly arising from any usage of any trade or from any course of dealing in connection with the use of the information contained herein or the product itself. The user expressly assumes all risk and liability, whether based in contract, tort or otherwise, in connection with the use of the information contained herein or the product itself. Further, information contained herein is given without reference to any intellectual property issues, as well as federal, state or local laws which may be encountered in the use thereof. Such questions should be investigated by the user.
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