Thermalux is Westlake’s family of sulfone polymers. These amorphous thermoplastics are known for their toughness and stability at broad range of end-use temperatures from -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 PSU

    THERMALUX PSU

    Thermalux PSU

    Thermalux Polysulfone (PSU) is an amber colored, semi-transparent, heat-resistant, high performance engineering thermoplastic that offers higher heat resistance and better hydrolytic stability than polycarbonate (PC). It retains its good mechanical properties when exposed to steam and other sterilization techniques.

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  • Thermalux PPSU

    THERMALUX PPSU

    Thermalux PPSU

    Thermalux Polyphenylsulfone (PPSU) is a high performance engineering thermoplastic that offers a superior combination of high performance properties that include excellent thermal stability (HDT of 207°C / 405°F), outstanding toughness, and good environmental stress cracking resistance.

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  • Thermalux PESU

    THERMALUX PES

    Thermalux PESU

    Thermalux Polyethersulfone (PESU) An amber colored, semi-transparent, high performance engineering thermoplastic that combines good chemical resistance with a high heat deflection temperature (204°C / 399°F), making it a good fit for food service applications. This resin is also inherently flame retardant for use in electronic components and testing devices.

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