Saint-Gobain Seals, with numerous offices located throughout the US, have created a new polymer material solution specifically for critical applications in jet engine lubrication systems called Fluoroloy® A90. The new product is most suited for the following jet engine applications: bearing chambers, sump system, internal gearboxes and accessories as well as applications with high-temperature requirements.
Improvements in performance, efficiency, emissions and operating costs impact the working conditions of the equipment resulting in higher requirements for pressure and temperature, which are transferred to all components of the system such as engine seals. To contend with stricter pressure and temperature working conditions, Saint-Gobain Seals developed a new material that enables their spring-energized seals design to work with continuous temperature above 608°F (320°C); this higher threshold goes beyond the traditional sealing solution limit for PTFE (polytetrafluoroethylene) compounds currently matching industry requirements. The Fluoroloy A90 material formulation is designed to withstand static hot air sealing in temperatures up to 662°F (350°C) while retaining the mechanical properties with same or less leakage, surface indentation and material degradation.