Attributes

Thermalux is Westlake’s family of sulfone polymers. These amorphous thermoplastics are known for their toughness and stability from end-use temperatures of -40°C to 204°C (-40°F to 400°F). Thermalux polymers are used in specialty applications and often are a superior replacement for polycarbonates. Three types of Thermalux are commercially available: polysulfone (PSU), polyethersulfone (PESU), and polyphenylsulfone (PPSU). Thermalux plastics’ combination of good mechanical/electrical properties, high temperature performance, chemical and hydrolytic resistance, and agency approvals make them excellent choices for applications in the pharmaceutical, medical, semiconductor processing, electronic equipment industries and food process applications. Across the product range they offer good resistance to creep and deformation under continuous load at elevated temperatures. Thermalux products will withstand exposure to soap, detergent solutions and some hydrocarbon oils, even at elevated temperatures under moderate stress levels.

Thermalux is made from resin that is suitable for use in certain food contact applications, contact your local Westlake Plastics representative for specific regulatory declarations.

Thermalux® Key Properties:

  • High Dielectric Strength
  • High Strength at Elevated Temperatures
  • High Modulus
  • Broad Chemical Resistance
  • Flame Resistance (PPSU)
  • Low Smoke Emission (PPSU)
  • Hydrolytic Stability (Moisture and Steam Resistance)
  • Resistance to Stress Cracking

The Thermalux® Lineup

Thermalux® PESU

  • High heat resistance
  • High strength and stiffness
  • Good chemical resistance

1 Colors

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Thermalux® PPSU

  • Highest heat resistance
  • High strength and stiffness
  • Good chemical resistance
  • Inherently flame retardant

2 Colors

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Thermalux® PSU

  • Good heat resistance
  • High strength and stiffness
  • Good chemical resistance
  • Biocompatible

1 Colors

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