Improved toughness, strength and heat resistance over PEEK

AvaSpire AV621 is a polyaryletherketone (PAEK) blend delivering added impact strength over PEEK at all temperatures and higher stiffness above 150°C. Its inherently higher toughness provides an advantage to glass and carbon fiber reinforced grades especially for larger cross section shapes by removing the brittleness of similar PEEK based materials. AV621 improves the dimensional stability of complex machined parts over competing non reinforced PEEK based materials especially through autoclaving cycles. It is highly colorable and well suited for many applications in the life sciences and in industry including:

  • Surgical instrument handles
  • Orthopedic trials
  • Valve seats and high temperature seal

Specifications –




ISO 10993

Plate Sizes –
.125”x4” to 1.25”x12”

Rod Diameters –
.250” to 6”

Many Custom Sizes Available