Exceptional Toughness. Thermal Performance.
PPSU is a high-performance thermoplastic offering superior impact resistance, hydrolytic stability, and temperature capability.
Select a form factor to view real-time inventory, pricing, and custom cut-to-size options.
| Short Description | Color | Thickness | Width | Length | Stock | Price | Add to quote |
|---|---|---|---|---|---|---|---|
| PPSU - 0.250" 12 x 48 Natural Sheet | Natural | 0.250″ | 12″ | 48″ | Out of stock | Contact | |
| PPSU - 0.375" 12 x 24 Natural Sheet | Natural | 0.375″ | 12″ | 24″ | Out of stock | Contact | |
| PPSU - 0.375" 24 x 48 Natural Sheet | Natural | 0.375″ | 24″ | 48″ | Out of stock | Contact | |
| PPSU - 0.500" 12 x 12 Natural Sheet | Natural | 0.500″ | 12″ | 12″ | Out of stock | Contact | |
| PPSU - 0.500" 12 x 24 Natural Sheet | Natural | 0.500″ | 12″ | 24″ | Out of stock | Contact | |
| PPSU - 0.500" 24 x 36 Natural Sheet | Natural | 0.500″ | 24″ | 36″ | Out of stock | Contact | |
| PPSU - 0.500" 24 x 48 Natural Sheet | Natural | 0.500″ | 24″ | 48″ | Out of stock | Contact | |
| Radel R5500 (PPSU) - 0.500" 12 x 24 Black Sheet | Black | 0.500″ | 12″ | 24″ | Out of stock | Contact | |
| PPSU - 0.625" 12 x 12 Natural Sheet | Natural | 0.625″ | 12″ | 12″ | Out of stock | Contact | |
| PPSU - 0.625" 24 x 24 Natural Sheet | Natural | 0.625″ | 24″ | 24″ | Out of stock | Contact |
| Short Description | Color | Diameter | Length | Stock | Price | Add to quote |
|---|---|---|---|---|---|---|
| Radel R5500 (PPSU) - 0.375" dia x 120 Black Rod | Black | 0.375″ | 120″ | Out of stock | Contact | |
| Radel R5500 (PPSU) - 0.500" dia x 120 Black Rod | Black | 0.500″ | 120″ | Out of stock | Contact | |
| Radel R5500 GRY 0732-2 (PPSU) - 0.625" dia x 120 Natural Rod | Natural | 0.625″ | 120″ | Out of stock | Contact | |
| Radel R5500 (PPSU) - 0.750" dia x 120 Black Rod | Black | 0.750″ | 120″ | Out of stock | Contact | |
| Radel R5500 (PPSU) - 0.750" dia x 60 Black Rod | Black | 0.750″ | 60″ | Out of stock | Contact |
Material Overview
Polyphenylsulfone (PPSU) is the highest-performance member of the sulfone thermoplastic family, offering superior toughness and impact resistance compared to polysulfone (PSU) while maintaining excellent hydrolytic stability and broad high-temperature capability. PPSU material is specified for the most demanding applications where thermal reliability, resistance to repeated sterilization, and mechanical durability under shock and impact loading are all required simultaneously. Ready Plastics stocks PPSU sheet and rod in standard sizes for precision-machined components in medical device, aerospace, and fluid-handling applications where no other sulfone-family material is adequate.
PPSU delivers superior toughness — it resists impact and mechanical shock better than any other sulfone-family thermoplastic — while maintaining reliable performance in environments involving repeated exposure to hot water, steam, and aggressive chemical cleaning agents. Its outstanding hydrolytic stability allows PPSU plastic to withstand hundreds of autoclave steam sterilization cycles without degradation of mechanical properties or dimensional change, making it the preferred polymer for reusable surgical instruments, sterilization trays, and hospital fluid-management components. The material maintains dimensional stability and mechanical strength through the wide service temperature range of the polyphenylsulfone structure, supporting long service life in demanding applications where dimensional drift or premature property loss would be unacceptable.
Machinability and fabrication. PPSU machines cleanly on conventional CNC equipment using standard tooling for high-performance thermoplastics. Its amorphous structure produces consistent chip formation and predictable tool engagement, simplifying programming for complex medical and aerospace geometries. The material holds tight tolerances in precision instrument components and retains dimensional stability after machining without time-consuming stress-relief operations. PPSU is compatible with a broad range of medical-grade disinfectants and industrial cleaning agents. Confirm chemical compatibility for specific process chemicals against the material datasheet before finalizing your design specifications.
Grade selection. Ready Plastics also stocks PPSU MT — a modified grade engineered for enhanced toughness and impact resistance when even greater mechanical durability under shock loading is required beyond the already high baseline of standard PPSU. For applications where hydrolytic stability is important but peak PPSU toughness is not a requirement, PSU (polysulfone) provides a cost-effective alternative within the sulfone family with solid thermal performance, good hydrolytic stability, and reliable chemical resistance across most industrial environments.
Frequently Asked Questions
PPSU (polyphenylsulfone) is a high-performance amorphous thermoplastic and the toughest member of the sulfone family. It offers superior impact resistance, excellent hydrolytic stability, and reliable high-temperature performance. PPSU is widely used in reusable surgical instruments, aerospace hardware, and fluid-handling systems that require repeated steam sterilization and resistance to mechanical shock.
PPSU offers higher toughness, better impact resistance, and higher service temperature than PSU (polysulfone). Both materials have excellent hydrolytic stability and can withstand autoclave sterilization. Choose PPSU when peak toughness and maximum thermal performance within the sulfone family are required; PSU is appropriate for less demanding applications where cost-effectiveness is important.
Yes. PPSU's outstanding hydrolytic stability allows it to withstand hundreds of autoclave steam sterilization cycles without significant loss of mechanical properties or dimensional change — a key reason it is widely specified for reusable surgical instruments and medical device components.
Ready Plastics stocks PPSU in sheet and rod form in standard sizes. Contact us for current availability or to discuss custom-cut stock for your specific application.
PPSU MT is a modified grade engineered for enhanced toughness and impact resistance beyond standard PPSU. Choose PPSU MT when the application involves repeated mechanical shock, impact loads, or cyclic stress that exceeds the performance envelope of standard PPSU while still requiring the thermal stability and hydrolytic resistance of polyphenylsulfone.
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