Arkema Supplies Kepstan® PEKK High-Performance Polymers for Aerospace, Enabling High-Heat, High-Strength, Lightweight Thermoplastic Composites

July 12, 2026

Arkema High Performance Polymers France

Overview

Arkema is strengthening its portfolio of high-performance polymers, particularly Kepstan® PEKK, to meet the demanding requirements of the aerospace industry. These materials offer exceptional thermal resistance, mechanical performance, and advanced processability for lightweight, durable structures, including thermoplastic composites and additive manufacturing. Arkema’s solutions also extend to high-performance connectors, electrical insulation, and wire & cable systems in harsh flight environments, underpinning aerospace innovation.

In Depth

Key Findings

Arkema is a key supplier of high-performance polymers, notably its Kepstan® PEKK (Polyetherketoneketone) range, specifically tailored for the highly demanding applications within the aerospace sector. These materials are characterized by their exceptional thermal resistance, superior mechanical performance, and advanced processability. They are crucial for creating lightweight and durable structures, especially in thermoplastic composites and additive manufacturing, thus supporting the next generation of aerospace innovation.

Technical Details

Kepstan® PEKK is a semi-crystalline thermoplastic polymer featuring a very high glass transition temperature and melting point, allowing it to maintain critical mechanical properties across a wide temperature range. This makes it suitable for extreme environments, such as high-temperature zones in engines or airframe structures exposed to aerodynamic heating. Its outstanding strength-to-weight ratio significantly contributes to aircraft lightweighting, leading to improved fuel efficiency and reduced CO2 emissions. Furthermore, PEKK exhibits excellent chemical resistance, fatigue resistance, and creep resistance, ensuring long-term reliability. Being thermoplastic, it is inherently recyclable and allows for rapid processing and easier repair compared to thermosets. Its high compatibility with additive manufacturing techniques, such as Fused Deposition Modeling (FDM) or Fused Filament Fabrication (FFF), enables the rapid production of complex geometries and prototypes.

Background & Context

The aerospace industry continuously pursues advancements in lightweighting, durability, safety, and fuel efficiency. Achieving these goals requires high-performance materials that transcend the limitations of traditional metals. High-performance polymers like PEKK are increasingly becoming central to new aircraft and spacecraft designs by replacing metallic components and offering greater design freedom. Concurrently, there is a growing emphasis on strengthening supply chains and enhancing sustainability, which makes recyclable and efficiently processable thermoplastic composites particularly attractive to the industry.

Strategic Significance & Outlook

Arkema’s high-performance polymers, including Kepstan® PEKK, are poised to be foundational enablers for future technological innovations in aerospace. Their adoption is expected to expand across diverse applications, including lightweight and robust aircraft structures, next-generation spacecraft components, and advanced defense systems. The synergy with additive manufacturing will further accelerate the rapid production of customized parts and the realization of on-demand manufacturing. This trajectory promises to evolve the aerospace industry towards a more sustainable and high-performance future, establishing new benchmarks for material science and engineering globally.

Source: https://hpp.arkema.com/en/markets-and-applications/aerospace/

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