Syensqo Composites Prove Viable Alternative to Titanium in Boeing Applications
Syensqo, a world pioneer in advanced materials, successfully proved its CYCOM 5250-4HT high service temperature prepreg as a competitive alternative to titanium on the MQ-25 Stingray exhaust nozzle in collaboration with Boeing, a major manufacturer of military and commercial aircraft.
Developed for the U.S. Navy, Boeing’s MQ-25 Stingray will be the first carrier-based unmanned aerial refueling vehicle in history.
The plane’s wing and fuselage skins are composed of Syensqo’s high performance CYCOM prepregs and FM adhesive materials. By incorporating CYCOM 5250-4HT on the exhaust nozzle concept, additional lightweighting is achieved, allowing the aircraft to carry more fuel while reducing reliance on titanium, enhancing both operational efficiency and supply chain resilience.
CYCOM 5250-4HT is a bismaleimide resin system with excellent thermal stability after thermal cycling and ideal for use in high temperature areas near engines for defense, propulsion, space and launch and high-performance automotive applications. It comes in a variety of carbon, glass and quartz product forms and is compatible with Syensqo’s high temperature adhesives and surfacing product line.
“The successful technology demonstration, made possible through the close collaboration between Boeing and Syensqo engineering teams, has validated the feasibility of integrating the CYCOM 5250-4HT material system into a composite exhaust nozzle structure,” stated Josh Dustin, Senior Manager with Boeing Research & Technology, Structures Technology. “This was a critical step in pushing forward the art of the possible with high-temperature composite applications.”
“Syensqo is delighted to continue our strong collaborative relationship with Boeing to enhance the MQ-25 Stingray vehicle performance,” said Marc Doyle, Executive Vice President of Syensqo Composite Materials. “This achievement demonstrates our commitment to driving innovation in high-temperature composites for the most demanding aerospace environments.”
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