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Manufacturer: Westlake

Polymethylpentene TPX is a lightweight, high temperature polyolefin with exceptional acoustical and electrical properties. TPX has low moisture absorption and excellent chemical resistance. It is often used for applications requiring low distortion of sound waves including sonar covers, speaker cones, and ultrasonic transducer heads. TPX is also used for electrical insulating applications requiring high dielectric strength and low dielectric constant. TPX has the lowest specific gravity of any commercially available thermoplastic (0.835), making it an excellent choice for lightweight structural parts. Additionally, natural TPX is FDA compliant for use in food processing machinery.


Advantages of TPX:

- Exceptional sound properties

- Low specific gravity

- Excellent electrical properties

- Low water absorption

- Transparent

- High heat resistance

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Features & Benefits

- Laboratory equipment components
- Medical equipment parts
- Microwave components
- Electric and electronic components
- Acoustical devices
- Loudspeaker diaphragms
- Sonar transducer covers
- Lightweight structural parts


- Rod: 1/8" to 8" diameter
- Sheet: 1/4" to 4" thick
- Film: .002" to .029" thick

- Natural (transparent light amber)
- Black available - custom



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