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Ensinger PEI

Mitsui TPX® RT18 Methylpentene Copolymer, Transparent Grade
Categories: Polymer; Thermoplastic; Polymethylpentene (PMP)
Material Notes: TPX® is a 4-methylpentene-1 based polyolefin. TPX is used in a wide variety of applications, including: medical equipment, laboratory ware, small appliances, ovenware, baking cartons, release paper, wire and cable coating, and a number of industrial uses. TPX is manufactured and marketed solely by Mitsui Chemicals, Inc.

Applications:

  • Injection Molded Items:
    • Blood test cells
    • Medical instruments
    • Laboratory ware
    • Coffee maker parts
    • Cosmetic containers
  • Extrusion Molded Items:
    • Sight glass (pipes, sheets)
    • Baking cartons (food containers)
    • Release paper
    • Wire and cable coating
    • Films

Molding Method:

  • Injection
  • Extrusion

Information provided by Mitsui.
Vendors: No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
 
Physical PropertiesMetricEnglishComments
Density 0.833 g/cc0.0301 lb/in³ASTM D1505
Water Absorption 0.010 %0.010 %24 hours; ASTM D570
Linear Mold Shrinkage 0.021 cm/cm0.021 in/inMPC method, MD
Linear Mold Shrinkage, Transverse 0.017 cm/cm0.017 in/inMPC method
Melt Flow 26 g/10 min
@Load 5.00 kg,
Temperature 260 °C		26 g/10 min
@Load 11.0 lb,
Temperature 500 °F		ASTM D1238
 
Mechanical PropertiesMetricEnglishComments
Hardness, Rockwell R 8585ASTM D785
Tensile Strength at Break 17.2 MPa2490 psi5mm/min; ASTM D638
Tensile Strength, Yield 23.0 MPa3340 psi5mm/min; ASTM D638
Elongation at Break 25 %25 %MPC method, 5mm/min
Modulus of Elasticity 1.28 GPa186 ksiTangent; ASTM D790
Flexural Strength 35.3 MPa5120 psi2mm/min; ASTM D790
Flexural Stiffness 965 MPa140000 psiOlsen Stiffness; ASTM D747
Izod Impact, Unnotched (ISO) 14.7 kJ/m²
@Thickness 2.00 mm,
Temperature 20.0 °C		6.99 ft-lb/in²
@Thickness 0.0787 in,
Temperature 68.0 °F		ASTM D256
Charpy Impact, Notched 0.420 J/cm²
@Thickness 2.00 mm,
Temperature 20.0 °C		2.00 ft-lb/in²
@Thickness 0.0787 in,
Temperature 68.0 °F		ASTM D256
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity >= 1.00e+16 ohm-cm>= 1.00e+16 ohm-cmASTM D257
Dielectric Constant 2.12
@Frequency 100 - 1.00e+6 Hz		2.12
@Frequency 100 - 1.00e+6 Hz		ASTM D150
Dielectric Strength 65.0 kV/mm1650 kV/inASTM D149
 
Thermal PropertiesMetricEnglishComments
CTE, linear 117 µm/m-°C
@Temperature 20.0 °C		65.0 µin/in-°F
@Temperature 68.0 °F		ASTM D696
Specific Heat Capacity 1.97 J/g-°C0.471 BTU/lb-°FASTM C351
Thermal Conductivity 0.167 W/m-K1.16 BTU-in/hr-ft²-°FBS 874A
Melting Point 240 °C464 °FMPC Method
Deflection Temperature at 0.46 MPa (66 psi) 90.0 °C194 °FASTM D648
Vicat Softening Point 173 °C343 °FASTM D1525
 
Optical PropertiesMetricEnglishComments
Refractive Index 1.4631.463n20 D; ASTM D542
Haze 2.0 %2.0 %ASTM D1746
Transmission, Visible 90 %90 %Mfr. indicates clear but does not quantify
 
Descriptive Properties
AppearanceColorless transparent
Rate of Burning2.54 cm/minASTM D635

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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