An enhanced HexWeb CRPAA-5052-F80-12.0 Vented Flex-Core aluminum honeycomb by Hexcel Corp. (Stamford, Conn., U.S.) has been engineered to simplify complex composite structure production and still meet the demanding performance requirements of modern space launch systems and aerospace applications.


Traditional heavy-density honeycomb cores often require extensive machining and splicing to create highly contoured composite structures. Hexcel’s 12.0 lb/ft³ Vented Flex-Core reduces those challenges through a distinctive cell architecture that offers greater flexibility and formability than conventional hexagonal honeycomb. The material can reduce or eliminate machining, minimize splicing requirements and lower overall manufacturing costs while enabling larger and more complex structures, the company highlights.

Source | Hexcel Corp.

Manufactured from 5052 aluminum alloy and protected by Hexcel’s phosphoric acid anodized (PAA) corrosion-resistant coating, the material is capable of service temperatures up to 177°C. A key innovation is its integrated venting capability, which helps composite sandwich structures manage pressure differentials and outgassing requirements encountered during ascent and other demanding aerospace environments.


Beyond launch vehicle applications, the material is also well suited for high-temperature aerospace structures, including engine nacelles, where increasingly complex geometries and elevated operating temperatures continue to drive demand for advanced lightweight materials.


Available in vented and non-vented configurations, the HexWeb CRPAA-5052-F80-12.0 Flex-Core expands Hexcel’s portfolio of honeycomb solutions for space, aerospace and other demanding composite applications.