High temperature thermoplastic material with outstanding impact resistance that is autoclavable
PPSU (polyphenylsulfone) (Radel® R) is a high temperature thermoplastic material with outstanding impact resistance. Radel® R is resistant to hot water and steam and can withstand repeated cycles in a steam autoclave. FDA compliant grades of PPSU are available. For PPSU chemical resistance view our chart.
Shop for PPSU
24 in x 48 in
0.500 in – 2 in
0.375 in – 3.500 in
Length, width, thickness, and diameter tolerances vary by size, by manufacturer, brand, and grade. Custom sizes available upon request.
PPSU Properties and Material Options
Radel® R-5500– is a general purpose extrusion grade of polyphenylsulfone (PPSU) offering exceptional hydrolytic stability and better toughness than most commercially available high temperature polymers.
Tech Tip– PPSU is often used instead of polysulfone or Ultem® for medical applications when superior toughness or extended service life with repeated autoclave cycles is desired.
Typical properties of PPSU
|Izod impact (notched)
||ft-lbs/in of notch
|Heat deflection temperature @ 264 psi
|Maximum continuous service temperature in air
|Water absorption (immersion 24 hours)
|Coefficient of linear thermal expansion
Values may vary according to brand name. Please ask your Curbell Plastics representative for more specific information about an individual brand.
Explore the physical, mechanical, thermal, electrical, and optical properties of PPSU.
Sort, compare, and find the plastic material suited for your application using our interactive properties table.