High-Heat Transparency with Superior Toughness and Impact Strength
Radel® polyphenylsulfone (PPSU) delivers the highest performance of our sulfone polymers. Our broad product slate offers an impressive selection of transparent and opaque color and meets a wide range of performance, price and processing requirements.
Radel® PPSU offers impact strength similar to polycarbonate (PC) and better chemical resistance than polyetherimide (PEI). It excels in high heat and humidity environments and provides operating temperatures around 200°C (392°F) and inherent flame retardant properties.
Why Radel® PPSU?
- High HDT 207°C (405°F): maintains properties in hot water and steam environments
- Impact strength similar to PC: similar to polycarbonate; absorbs shock without cracking after 1000+ autoclave cycles
- Chemical resistance superior to PEI (polyetherimide): resists chlorinated water, oils, grease, and many organic solvents
- Steam sterilization: tolerates 1000+ cycles with minimum property loss - enabling reusable medical device designs
- Exceptional long-term hydrolytic stability: remains stable in prolonged water/steam exposure-critical for plumbing and healthcare
- Colors: transparent and opaque options enable product aesthetics and technical requirements
- Flame rating: inherently UL-94 V0 meets FAA low-smoke/toxicity aerospace standards
Learn more about Radel® PPSU properties
Market Applications
Radel® PPSU offers long-lasting performance in healthcare, plumbing, food service, aircraft and wire insulation applications. Medical-grade Radel® PPSU resins have a long history of providing a strong, lightweight alternative to metal in sterilizable instrument trays, implant trials and surgical instrument handles. Radel® PPSU is a high temperature BPA-free polymer with hot water and steam resistance, making it suitable for food service applications. In plumbing, Radel® PPSU and Acudel® modified PPSU routinely replace brass in pressurized, hot water fittings and valves, thereby eliminating corrosion and contamination from heavy metals while extending service life. In Green Hydrogen, Radel® PPSU offers the superior strength and stability required for membrane electrode assembly components, such as subgaskets and cell frames in fuel cell systems.
Check out all Radel® PPSU applications
Radel® PPSU Product Line
Radel® PPSU resins are designed to meet a wide range of performance, price and processing requirements. They are available in transparent and opaque colors that help component manufacturers enhance product design and branding opportunities.
| Product Family | Description | Colors |
|---|---|---|
| R-5500 | Low flow | Transparent, opaque |
| R-5000 | Medium flow | Transparent |
R-5100 | Medium flow | Opaque |
R-5800 | Medium-High flow | Transparent, Opaque |
| R-5900 | High flow | Transparent, opaque |
R-5600 | Very high flow | Transparent |
| RG-5010 | Glass filled | Opaque |
Find Radel® PPSU grades, technical data sheets, SDS and more
Find Radel® PPSU products by chemistry, market, application, etc.
