Polyetherketoneketone (PEKK) is rapidly gaining traction in high-performance manufacturing, particularly in aerospace, defense, and medical applications. As a member of the PAEK (polyaryletherketone) family, PEKK offers an unmatched combination of strength, heat resistance, and chemical durability, making it a go-to material for critical components in extreme environments.
Why PEKK?
PEKK stands out for its exceptional mechanical properties, with a high tensile strength that rivals metals while maintaining a lightweight profile. It operates in temperatures exceeding 300°C (572°F) and exhibits impressive resistance to radiation, chemicals, and wear—qualities that traditional polymers struggle to match. Unlike other thermoplastics, PEKK also boasts a low outgassing rate, crucial for aerospace and space applications.
Aerospace & Defense Applications
In aerospace, PEKK is revolutionizing the production of lightweight structural brackets, ducting, and cabin components. Compared to aluminum, PEKK parts can achieve up to a 60% weight reduction, improving fuel efficiency and performance. Additionally, its inherent flame resistance and low smoke emission make it ideal for safety-critical environments.
Medical & Industrial Uses
The medical sector leverages PEKK’s biocompatibility and sterilization resilience for implants, surgical guides, and orthopedic applications. Unlike other plastics, PEKK withstands repeated autoclaving without degradation, ensuring longevity and reliability. In industrial settings, its superior chemical resistance makes it an excellent choice for seals, bushings, and electrical insulation in harsh environments.
3D Printing with PEKK
One of PEKK’s most compelling advantages is its compatibility with additive manufacturing (AM). Unlike other high-performance polymers, PEKK exhibits a lower crystallization rate, allowing for superior printability and layer adhesion. This enables the production of complex, custom components with high precision—offering manufacturers a faster, more efficient alternative to traditional machining.
The Future of PEKK
As industries push for lighter, stronger, and more heat-resistant materials, PEKK is poised to become a cornerstone of next-generation manufacturing. Its unique blend of properties bridges the gap between traditional thermoplastics and metal, making it an essential material for innovation in aerospace, medical, and industrial applications.
Whether through CNC machining, injection molding, or additive manufacturing, PEKK delivers a high-performance solution that meets the demands of modern engineering.
Interested in leveraging PEKK for your next project? Contact us to explore how this advanced polymer can redefine your manufacturing strategy.
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This lattice-filled part is made from a PEKK material. (Source: Stratasys)