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Westlake TPX

Polymethylpentene

Supplied by Westlake Plastics Company

The technical datasheet with complete property values for Westlake TPX is available to members of the Prospector Plastics Database.
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Product Description
TPX has a remarkable and unique combination of transparency and resistance to heat and chemicals. It also has unique acoustical properties. It is used in a wide variety of applications including speaker cones, gas separating membranes, release films and carrier films for ceramic slurry.
Manufacturing Capabilities:
  • Thicknesses and Widths: 0.002 to 0.029 in up to 24 in wide
  • Finishes: all thicknesses available polished one side, matte the other (P/M)
General  
Material Status 
  • Commercial: Active
Availability 
  • North America
Features 
  • Bondability
  • Good Chemical Resistance
  • Good Electrical Properties
  • High Heat Resistance
  • Low Moisture Absorption
  • Ultrasonic Weldable
Uses 
  • Acoustic Barrier
  • Film
  • Medical/Healthcare Applications
  • Membranes
  
Agency Ratings 
Appearance 
  • Clear/Transparent
Forms 
  • Pellets
Processing Method 
  • Thermoforming
Physical
Nominal Value
Unit
Test Method
Specific Gravity
 
 ASTM D792
Water Absorption (24 hr)
%
 ASTM D570
Films
Nominal Value
Unit
Test Method
Secant Modulus - MD
psi
 ASTM D882
Tensile Strength - MD (Yield)
psi
 ASTM D882
Tensile Elongation - MD (Break)
%
 ASTM D882
Flexural Modulus - MD
psi
 ASTM D790
Thermal
Nominal Value
Unit
Test Method
Deflection Temperature Under Load (66 psi, Unannealed)
°F
 ASTM D648
Max. Continuous Use Temperature
°F
 ASTM D794
Melting Temperature
°F
 DSC
Electrical
Nominal Value
Unit
Test Method
Surface Resistivity
ohms
 ASTM D257
Dielectric Strength (3.00E-6 in)
V/mil
 ASTM D149
Dielectric Constant (1 kHz)
 
 ASTM D150
Dissipation Factor (1 MHz)
 
 ASTM D150
Flammability
Nominal Value
Unit
Test Method
Flame Rating - UL
 
 UL 94
Oxygen Index
%
 ASTM D2863
Optical
Nominal Value
Unit
Test Method
Refractive Index
 
 ASTM D542
Transmittance
%
 ASTM D1003
Haze
%
 ASTM D1003
Additional Information
Tear Strength - prop, ASTM D1004: 125 g/mil
Area Factor: 32725 in²/lb/mil
Thermoforming Temperature: 248 to 428°F
Welding Time: 45 sec
Holding Time: 1 sec
Holding Pressure: 85 psi
CO2: 115000 cc-mils/100 in²/24 hrs-atm
Nitrogen:8000 cc-mils/100 in²/24 hrs-atm
Oxygen: 32000 cc-mils/100 in²/24 hrs-atm
Water Vapor: 50 g-mils/100 in²/24 hrs-atm
Related Terminology
Product names can be difficult to match. You may have searched any one of these terms to find this product: Westlake TPX, Westlake , WestlakeTPX, TPX, Polymethylpentene, PMP, Westlake Plast
Features
Features may also be described by the following terms: Ultrasonic Weldable, Low Moisture Absorption, Low Water Absorption, Water Resistant, Moisture Resistant, High Heat Resistance, Good Electrical Properties, Good Chemical Resistance, Chemical Resistant, Bondability, Bondable.
Uses
Uses may also be described by the following terms: Medical Applications.
Agency Ratings
This plastic material has 1 certifications from the following agencies (the number in parentheses shows the number of certifications for that agency): FDA (1).
Notes
1Typical properties: these are not to be construed as specifications.
 
IDES
Copyright © 2012 IDES
The information presented on this datasheet was acquired by IDES from the producer of the material. IDES makes substantial efforts to assure the accuracy of this data. However, IDES assumes no responsibility for the data values and strongly encourages that upon final material selection, data points are validated with the material supplier.