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Originally manufactured by Amoco Performance Products under the trade name Radel® R, but now produced by Solvay Advanced Polymers, stock shapes extruded from this resin are manufactured by SUSTAPLAST under the SUSTASON name.

SUSTASON is an amorphous (transparent) high-performance plastic with high mechanical strength over a broad temperatutre range. SUSTASON has excellent thermal stability, outstanding toughness, and good environmental stress cracking resistance.

In the field of medical engineering this material has gained prominence due to its outstanding properties.

SUSTASON Polyphenyl Sulphone can be characterised by the following:

  • Excellent thermal stability
  • Outstanding toughness
  • Good environmental stress cracking resistance
  • Excellent resistance to hydrolysis
  • Flame retardant


Only on special request. Minimum Order Quantities.