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PSU Materials & Forms

Polysulfone (PSU) is an amorphous high-performance engineering thermoplastic known for its stiffness, dimensional stability and transparency in suitable grades. Explore PSU sheet, rod, powder, granules, film and custom CNC machined components for industrial, electrical and fluid-handling applications.

Product Portfolio

PSU Products in Different Forms

Select the product form that matches your application. Explore material details, processing considerations and product-specific guides, or contact us with your technical requirements.

Transparent light amber PSU polysulfone sheet stock

PSU Sheet

Polysulfone sheet stock for machined components, electrical insulation and selected fluid-handling applications.

Sheet
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Transparent light amber PSU polysulfone round rod stock

PSU Rod

Round rod stock for custom turned components, bushings, fittings and precision-machined parts.

Rod
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PSU polysulfone powder for selected industrial processing applications

PSU Powder

Powder-form polysulfone for application-specific compounding, coating or specialty processing where the grade is suitable.

Powder
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PSU polysulfone resin granules for thermoplastic processing

PSU Granules

Polysulfone resin pellets for suitable injection molding and extrusion applications.

Granules
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Custom CNC machined PSU polysulfone plastic components

PSU CNC Parts

Custom machined PSU components manufactured according to drawings and application requirements.

CNC Machining
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PSU polysulfone film material

PSU Film

Specialty polysulfone film for selected electrical, industrial and application-specific uses.

Film
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Material Overview

Understanding PSU Polysulfone

PSU is an amorphous thermoplastic in the sulfone polymer family. Its combination of thermal characteristics, stiffness and transparency makes it useful for selected demanding applications.

Thermal Performance

PSU has a typical glass transition temperature of approximately 185°C. Actual service limits depend on the grade, mechanical load and operating environment.

Transparency

Many unfilled PSU grades have a natural transparent amber appearance. Optical properties vary with thickness, formulation and processing.

Dimensional Stability

PSU offers useful stiffness and dimensional stability in suitable applications. Component performance depends on design and operating conditions.

Hydrolysis Resistance

PSU is used in selected hot-water and fluid-handling applications. Chemical and hydrolysis resistance must be checked for the actual service conditions.

Electrical Insulation

PSU can provide electrical insulating performance for suitable components. Verify dielectric properties using the relevant grade data.

Machinability

PSU sheet and rod stock can be machined into custom parts. Tooling, clamping and heat management influence the final result.

Typical Material Reference

PSU Property Overview

Property General Reference
Material Name Polysulfone (PSU)
Polymer Structure Amorphous Thermoplastic
Glass Transition Temperature (Tg) Approximately 185°C
Appearance Transparent to translucent amber in many unfilled grades
Density Typically around 1.24 g/cm³; grade-dependent
Tensile Strength Refer to the specific grade's technical data sheet
Continuous Service Temperature Depends on grade, load and operating environment

Note: Values shown are general material references, not guaranteed specifications for every PSU grade or finished product. Always consult the manufacturer's technical data sheet (TDS) for exact mechanical, thermal, electrical and chemical properties.

Application Areas

Where Is PSU Used?

PSU is selected for applications where its combination of thermal, mechanical, electrical and transparency characteristics matches the requirements of the finished component.

Medical and Healthcare Equipment Selected housings, reusable components and equipment parts made from appropriately documented grades.
Fluid Handling Systems Components for selected water, fluid and process equipment applications.
Electrical Engineering Insulating components, supports and housings requiring suitable electrical and thermal characteristics.
Industrial Equipment Structural and functional parts designed for demanding industrial environments.
Food and Beverage Equipment Selected components where the exact material grade and applicable food-contact requirements have been verified.
Laboratory Equipment Transparent or functional components for selected laboratory instruments and equipment.
Material selection note: Medical, food-contact and sterilization-related applications require grade-specific documentation and validation. Do not assume every standard PSU product is suitable for these applications.
Material Comparison

PSU vs. PES vs. PPSU

PSU, PES and PPSU belong to the sulfone polymer family. They share some characteristics but have different performance profiles.

Material Typical Tg General Characteristics Selection Focus
PSU Approx. 185°C Transparency, stiffness and dimensional stability Transparent components and selected fluid-handling uses
PES Approx. 225°C Higher Tg and good thermal performance Applications requiring higher thermal capability
PPSU Approx. 220°C Toughness and impact resistance Applications requiring repeated-use durability and impact performance

These are typical polymer-family reference values. Actual properties, grades and application limits should be verified through the relevant manufacturer's technical data.

Frequently Asked Questions

PSU Material FAQs

Common questions about PSU materials, product forms and application selection.

1. What is PSU plastic?

PSU stands for Polysulfone, an amorphous high-performance thermoplastic. It is known for its stiffness, dimensional stability, transparency in suitable grades and thermal performance.

2. What is the glass transition temperature of PSU?

The typical glass transition temperature of standard polysulfone is approximately 185°C. Actual properties and service limits depend on the specific grade and operating conditions.

3. Is PSU transparent?

Many unfilled PSU grades are naturally transparent with an amber or brownish tint. Transparency and optical clarity vary with grade, thickness, additives and processing.

4. Is PSU suitable for medical applications?

Selected PSU grades are used in healthcare-related applications. Medical suitability depends on the exact grade, supplier documentation, regulatory requirements, sterilization conditions and validation of the finished component.

5. What forms of PSU does Teda Plastics offer?

The PSU product range presented by Teda Plastics includes sheet, rod, powder, granules, film and custom CNC machined components. Availability, dimensions and grade options should be confirmed for each project.

6. What is the difference between PSU, PES and PPSU?

PSU, PES and PPSU are related sulfone-family thermoplastics, but they have different property profiles. PSU is known for transparency and dimensional stability, PES for its higher typical glass transition temperature, and PPSU for its toughness and impact resistance. Actual performance depends on grade.

7. Can PSU be CNC machined?

Yes. Suitable PSU sheet and rod stock can be CNC machined into custom components. Tool selection, clamping, heat management and machining strategy should be adapted to the part geometry and material grade.

8. How can I request a PSU quotation?

Provide the required product form, material grade if specified, dimensions, quantity, application and any technical or regulatory requirements. For machined parts, include a 2D drawing or 3D CAD file.

Looking for PSU Materials?

Tell us which PSU form you need, your dimensions, quantity and application requirements. Teda Plastics can help review your engineering plastic material inquiry.

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