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Radel® PPSU 

Radel® polyphenylsulfone (PPSU) delivers the highest performance of our sulfone polymers, offering better impact resistance and chemical resistance than polysulfone (PSU) and polyetherimide (PEI).

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High Heat, High Impact Performance

The high heat resistance and excellent hydrolytic stability of Radel® PPSU make it an excellent choice for hot water fittings and medical devices requiring repeated steam sterilization.

Radel R-7000 Series products are specially formulated for use in aircraft interiors and are in compliance with stringent FAA regulations requiring low heat release, low smoke generation and low toxic gas emissions.

Acudel® modified PPSU offers cost advantages for applications with less demanding requirements.

Key Features

  • High HDT of 207°C (405°F)
  • Superior toughness and impact strength
  • Exceptional long-term hydrolytic stability
  • Better chemical resistance than PSU and PEI
  • Withstands over 1,000 cycles of steam sterilization without any significant loss of properties
  • Inherently flame retardant
  • Transparent
  • Colorable

Typical Applications

  • Sterilization cases and trays
  • Dental and surgical instruments
  • Medical devices
  • Aircraft interiors
  • Airline catering trolleys
  • Hot water fittings
  • Plumbing manifolds
  • Food service trays

Learn more at Sulfone Polymers Overview



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Application Spotlight
Radel® PPSU Dental Implant Surgical Tray
Healthcare Specialty Polymers
High-Performance Polymers for Plumbing
Membranes Specialty Polymers
Radel® PPSU for Aircraft Interiors
Radel® PPSU Standard Colors for Healthcare
Wire and Cable Specialty Polymers
Design & Processing Guide
Radel® PPSU, Udel® PSU, Veradel® PESU & Acudel® modified PPSU Processing Guide
Radel® PPSU, Veradel® PESU & Acudel® modified PPSU Design Guide
Sulfones Quick Molding Guide
Tegracore™ R-1050 PPSU Structural Foams Design and Processing Guidelines
Technical Bulletin
Healthcare Effects of H2O2 Gas Plasma Sterilization
Healthcare Sterilization Compatibility Overview
Membranes Processing Guide
Optical Properties of Sulfone Polymers
Plumbing Building Code Support for ASTM E84
Plumbing Disinfectant Practices
Plumbing Effects of Chlorinated Water on Plastic Delivery Systems
Plumbing LTHS Sulfone Polymers
Plumbing Resistance to Chloroamines
Plumbing Specialty Polymers Certified for Drinking Water
Radel® PPSU 5000 Tensile Creep Data
Radel® PPSU Chemical Compatibility for Aircraft Interiors
Radel® PPSU R-5000 ShelfLife Sterilization
Radel® PPSU R-7700 Thermoforming
Radel® PPSU Resistance to Prolonged Hot Water Exposure
Radel® PPSU Steam Sterilization
Snap Fit Latch Design
Sulfone Polymers Chemical Resistance
Sulfone Polymers Fractography Analysis
Sulfone Polymers Handling Sulfidation
Sulfones Optical Properties
Tegracore™ PPSU Foam for Aircraft
Tegracore™ PPSU Foam Sandwich Structures Deliver Superior Damage Resistance
Ultrasonic Welding


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Last Update (21/7/2015)