Virantage® VW-series functionalized polyethersulfones (r-PESU) are amorphous, high-temperature sulfone polymers featuring reactive end groups to enhance solubility and improve interfacial properties in epoxy thermosets. Their inherent toughness imparts damage tolerance to thermoset composites and excellent flexibility to coatings. Virantage® polymers also offer superior thermal and hydrolytic stability that delivers best-in-class hot-wet performance.
They are especially suitable for incorporation into advanced composite resin systems used to produce high-performance aerospace components and have been used successfully in a variety of thermosetting resin systems including epoxies, phenolics, and BMIs.
Virantage® VW-series polymers are available in a range of molecular weights: high (10200), medium (10300) and low (10700). A range of particle sizes is also available to meet formulators' specific needs.
All Virantage® PESU polymers are produced at Solvay's state-of-the-art, world-scale facility in Panoli, India under ISO 9001:2000 and ISO 14001:2004 certified quality management systems.
Typical Particle Size ~D90
  • VW-10200RP 500 ?m
  • VW-10200RFP 63.0 ?m
  • VW-10200RSFP 38.0 ?m


  • Global Business Unit
    Specialty Polymers
  • Brand
  • Synonyms


Segments Applications
Airframe Secondary structural materials | Primary structural materials | Surfacing Technologies
Propulsion Turbine

Chemical categories

Chemical category Chemical family Chemical product
Specialty Polymers Sulfone Polymers PESU (Polyethersulfone)

Region of commercial availability

  • Asia / Pacific
  • Europe / Middle East / Africa
  • North America
  • Latin America

Download documentation for Virantage® VW-10200 RP, RFP, RSFP