How to Choose the Right PSU Board for Your Application

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Understanding PSU Rods and Boards

Polysulfone (PSU) is a thermoplastic material that offers excellent chemical resistance, high-temperature stability, and dimensional stability. PSU rods and boards are widely used in various industrial applications, including aerospace, automotive, electronics, and medical equipment.

Considerations When Choosing PSU Boards

When selecting PSU boards for your application, there are several factors to consider:

Temperature resistance:

PSU has excellent thermal stability and can withstand high temperatures of up to 180°C without significant degradation. It maintains its mechanical properties and dimensional stability at elevated temperatures, making it suitable for use in applications that operate at high temperatures. When selecting a PSU board, it is important to consider the operating temperature range of the application and ensure that the board can withstand the expected temperature fluctuations.

Mechanical properties:

PSU is a tough, durable material with high strength and good impact resistance. It also has excellent dimensional stability, meaning that it exhibits minimal shrinkage or warping over time. When selecting a PSU board, it is important to consider the specific mechanical requirements of the application, such as impact loading, vibration, or stress concentration, and choose a board that has appropriate mechanical properties to meet those requirements.

Chemical resistance:

PSU is resistant to many chemicals, including acids, bases, and organic solvents. However, its chemical resistance varies depending on the specific chemical involved. When selecting a PSU board, it is important to consider the chemicals present in the application environment and choose a board that is compatible with those chemicals. This will help to ensure that the board maintains its structural integrity and does not degrade or corrode over time.

Electrical properties:

PSU is an excellent electrical insulator and has high dielectric strength, meaning that it can withstand high voltages without breaking down. When selecting a PSU board for electrical applications, it is important to consider its dielectric strength, as well as other factors such as surface resistivity and volume resistivity. This will help to ensure that the board provides reliable electrical insulation and does not contribute to electrical leakage or breakdown.

Brand and reliability:

Like with any other material or component, it is important to select a reputable brand when choosing PSU boards to ensure their quality and reliability. Choosing a board from a trusted manufacturer can help to ensure that it is manufactured to high standards and meets the necessary performance criteria for the intended application.


The cost of PSU boards can vary depending on their properties and manufacturer. When selecting a PSU board, it is important to consider its cost relative to other factors such as performance and reliability. While it may be tempting to choose a lower-cost option, it is important to balance cost with other considerations to ensure that the selected board provides the necessary performance and durability for the intended application.

Partner with Tuntunplastic for Customized PSU Board Solutions

At Tuntunplastic, we specialize in the production, sales, and service of special engineering plastics. We serve as agents for sulfone polymers, Polyetherimind (PEI), Polyetheretherke-tone (PEEK), and can provide customized solutions to meet your specific needs. Whether you require a specific color or dimension for your boards or rods, or other performance design features, we can work with you to create a customized solution that meets your requirements.

By partnering with Tuntunplastic, you can have that you will receive high-quality PSU boards that are tailored to your unique specifications.


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