Alro logo Alro Steel was established in 1948 by Al and Robert Glick. Today, Alro is comprised of Alro Steel, Alro Metals, Alro Plastics and Alro Metals Outlet.

Alro Plastics Product: Sustason PPSU MG (Radel® R)

Sustason PPSU MG


Sustason PPSU MG Colors

Size and Availability:

Sheet / Slab stock
- Thickness: 3/8”thk to 2”thk (standard increments)
- Sheet sizes: 24”x 48”

Rod / Round stock
- Diameters: 3/8”dia to 6”dia
- Rod length: Varies by diameter

Sustason PPSU MG  Sustason PPSU MG
Sustason PPSU (polyphenolsulfone) is produced from Radel® R resin. It is an amorphous product that offers improved chemical resistance and thermal stability over most amorphous thermoplastics. Sustason PPSU has the added advantage of superior impact resistance over polycarbonate. It is preferred over all other amorphous thermoplastics, including PEI (Ultem®), where added thermal performance impact resistance and a high number of steam sterilization cycles is desired.


  • Excellent thermal stability
  • High impact resistance
  • Resistance to hydrolysis
  • Continuous use temperature of 320° F
  • FDA and USP Class VI compliant
  • Outstanding steam autoclaving resistance
  • Custom colors available by request


  • Sizing trials for joint implants
  • Dental handles and instruments
  • Medical device components
  • Lab animal cages