What is PSU Polysulfone?

PSU Polysulfone is a durable polymer known for its ability to withstand extreme thermal, mechanical, and chemical stresses. It offers excellent resistance to high temperatures, oils, fats, alcohols, and hot water. This versatile material is microwave transparent and can be used in applications requiring frequent sterilization, such as medical and food processing equipment.

Thanks to its superior properties, PSU Polysulfone is widely used in the production of components for laboratory instruments, medical devices, food packaging systems, and electrical equipment.

Applications of PSU Polysulfone

Industry-specific applications

Medical and laboratory equipment
PSU Polysulfone is highly valued in medical and laboratory environments due to its resistance to multiple sterilization cycles. Common applications include pump wheels, insulators, and other precision components used in high-heat and high-load environments.

Food and beverage industry
With outstanding chemical resistance to hot water, steam, and oils, PSU Polysulfone is a reliable choice for food processing equipment. Typical applications include valves, connectors, and components for filling and packaging lines.

Electrical and electronic industry
The excellent dielectric strength and flame retardant properties of PSU Polysulfone make it suitable for electrical components. Products such as switch parts, plug connectors, and coil housings benefit from its dimensional stability under varying thermal conditions.

Key features of PSU Polysulfone

Characteristics and benefits

• High dimensional stability – Ensures precision in high-load applications with minimal thermal expansion.
• Low moisture absorption – Provides consistent performance in humid environments, preventing swelling and deformation.
• Flame retardant (V0, UL 94) – Enhances safety by reducing the risk of fire propagation.
• Sterilization resistant – Withstands repeated sterilization, making it suitable for medical and food processing applications.
• Good machinability – Easily machined and thermoformed, enabling the production of complex components.
• Chemical resistance – Resistant to oils, diluted acids, alkalis, and hot steam.

Technical data

• Density: 1.24 g/cm³
• Operating temperature: -50°C to +160°C
• Short-term temperature resistance: Up to +180°C
• Flammability rating: V0 (UL 94)

Available dimensions

PSU Polysulfone sheets and rods are available for custom orders in the following sizes:

Sheets

• Thickness: 10–50 mm
• Width: 620 mm
• Length: 3000 mm

Rods

• Diameter: Ø10–100 mm
• Length: 1000 mm or 3000 mm