Properties

Higher Stiffness than PEEK from 150°C to 200°C (302°F to 392°F)

AvaSpire® AV-651 has a modulus twice that of unfilled PEEK at 180°C (356°F). AvaSpire® AV-481 provides even higher modulus, close to 3X the modulus of unfilled PEEK (see chart below). AvaSpire® Glass AV-600 and AV-400 series analogs likewise provide higher modulus compared to glass filled PEEK at the equivalent level of glass fiber loading.

Discover all AvaSpire® PAEK grades

Comparison of mechanical performance at high temperature

A comparison of the melt flowability of various KetaSpire® PEEK and AvaSpire® PAEK grades is shown in the bar chart below. The graph illustrates how the melt flow rate of AV-481 stands out as the highest among the grades represented, illustrating the flowability advantage in addition to the heat resistance benefit illustrated above.

Comparison of melt flowability of various KetaSpire® PEEK and AvaSpire® PAEK grades

Unparalleled Combination of Stiffness and Strength

AvaSpire® AV-651 exhibits 20% higher elongation at yield than unfilled PEEK. Tensile elongations at break values are at least twice as high as comparable PEEK grades.

Comparison of ductility and toughness properties [ASTM test method]

Comparable Strength, Stiffness and Chemical Resistance at Lower Cost

AvaSpire® AV-722 delivers comparable strength and stiffness to unfilled PEEK at up to 30% lower cost, bridging the gap between PEEK and semi-crystalline polymers like PPS (polyphenylsulfone) and PPA (polyphthalamide).

Torsional DMA comparison of glass fiber reinforced grades

Comparison of mechanical properties