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AvaSpire® 621 PAEK

904 West 6th Street, Shiner, Texas 77984 USA
Phone: 1-361-594-2941     Fax: 1-361-594-2349     E-Mail:


BPI Home Page | Applications | Materials Guide | Contact Us!

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click to resize photo AvaSpire ® PAEK is a modified polyaryletherketone (PAEK) that offers improved ductility and impact strength relative to PEEK while retaining most of PEEK's key performance attributes. Additionally, AvaSpire PAEK generally offers improved part economics relative to unmodified PEEK resin. These and other properties make this material well-suited for applications in healthcare, transportation, electronics, chemical processing, and other industries.

AvaSpire ® is produced in a number of different resin grades that are suitable for a variety of processing methods including compression molding, stock shape extrusion, and injection molding. AvaSpire PAEK resin has been formulated for applications requiring a balance of chemical resistance and mechanical strength along with good part aesthetics, thereby bridging the performance gaps within the ultra polymers space.

AvaSpire AV-621 PAEK grade is the low melt flow (higher molecular weight) resin most suitable for stock shapes production. This PAEK is easily fabricated using conventional machining techniques and standard tooling. This unfilled grade has a uniform opaque appearance with a beige color similar to that of PEEK.

AvaSpire AV-621 grade PAEK is available from Boedeker Plastics in 1/2" and 1" thick plate/sheet and 1" and 2" diameter solid round rod forms. Contact us for more details on stock shape availability.

FEATURES (as compared to Virgin PEEK)
• Higher Heat Deflection Temperature   • Higher Impact Resistance   • Higher Tensile Elongation to Break   • Similar Chemical Resistance   • Same Mechanical Strength   • Lower cost  

• Aircraft & Aerospace components   • Surgical instruments & medical devices   • Semiconductor equipment   • Automotive components   • Electronic devices   • Bearings, Bushings & Gears   • Fasteners & Hardware   • Weapons systems  

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ASTM or UL test Property AVASPIRE 621 PAEK
D792 Density (lb/in³)
D570 Water Absorption, 24 hrs (%) 0.2
D3039 Tensile Strength at Yield (psi) 12,200
D3039 Tensile Modulus (psi) 420,000
D638 Tensile Elongation at Yield (%) 6
D638 Tensile Elongation at Break (%) > 40
D790 Flexural Strength (psi) 17,700
D790 Flexural Modulus (psi) 450,000
D695 Compressive Strength (psi) -
D695 Compressive Modulus (psi) -
D785 Hardness, Rockwell -
D256 IZOD Notched Impact (ft-lb/in) 1.9
D256 IZOD Unnotched Impact (ft-lb/in) no break
D696 Coefficient of Linear Thermal Expansion
(x 10-5 in./in./°F)
D648 Heat Deflection Temp (°F / °C)
at 264 psi

367 / 187
C177 Thermal Conductivity
(x 10-4 cal/cm-sec-°C)

UL94 Flammability Rating -
D149 Dielectric Strength (kV/mil) short time -
D150 Dielectric Constant at 1 MHz -
D150 Dissipation Factor at 1 KHz -
NOTE: The information contained herein are typical values intended for reference and comparison purposes only. They should NOT be used as a basis for design specifications or quality control. Contact us for manufacturers' complete material property datasheets.
All values at 73°F (23°C) unless otherwise noted.
AVASPIRE is a registered trademark of Solvay Advanced Polymers.

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Boedeker Plastics, Inc.
904 West 6th Street, Shiner, Texas 77984 USA
USA TOLLFREE : 1-800-444-3485
Phone: 1-361-594-2941     Fax: 1-361-594-2349     E-Mail:

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