10/01/2026
In the aviation industry, FEP film is used as a release film for demolding composite components. With its extremely low surface energy, FEP film effectively prevents prepregs (carbon fiber/resin) from adhering to molds or auxiliary materials during high-temperature and high-pressure curing processes. This enables clean and complete demolding, avoiding damage caused by components sticking to the molds. Its wide operating temperature range (approximately -180°C to +200°C) allows it to adapt to the extensive and demanding curing temperature profiles of aerospace composites (such as epoxy and bismaleimide resins). It remains stable during high-temperature curing without melting, deforming, or degrading in performance. Its high ductility and flexibility enable it to conform perfectly to complex curved surfaces of aircraft skins and irregularly shaped structural components without wrinkling. This meets the manufacturing requirements for complex aerodynamic profiles and irregular structural parts of aircraft or spacecraft, ensuring the release material can fully cover these components. Its excellent chemical resistance and flame retardancy prevent erosion by resin solvents, meeting the stringent safety and material stability requirements of aerospace manufacturing. During autoclave processing, FEP film is often used as a separation layer within vacuum bags. For components with appearance requirements, such as aircraft fuselages。