June 19th, 2014
Saint-Gobain Seals’ OmniGasket™ sealing solution is being utilized in the Aerospace market as a flanged sealing component on aircraft wing slats and their deicing telescopic duct system. Retained in a gasket, this sealing solution is machined from a polyimide plate with a static OmniSeal® seal installed inside, and is mounted at the interface between the telescopic duct and the wing leading edge. When flying at high altitudes in subzero temperatures, ice forms on the wing of aircraft and a deicing protection system destabilizes the ice using hot air coming from the engine, thus allowing the slipstream to dislodge it and remove it from the wing. The OmniGasket™ component is currently installed on a large-cabin, long range business jet and being tested for use on a new mid-size jet.
Because the product is composed of two of Saint-Gobain Seals’ high-performance product lines (Meldin® 7001 thermoset polyimide materials and OmniSeal® spring-energized seals), it is capable of handling extreme service conditions and ideal for the Aerospace market. Recent research and development from the Saint-Gobain Seals manufacturing team has led to a change in the OmniSeal® seal shape from round to oval and optimizing the limited space. Within the same plate size, the oval shape supports a larger surface area, which increases air flow intake.
Other advantages of the OmniGasket™ solution include:
Meldin® 7001 material was specifically selected for the application due to:
The Meldin® and OmniSeal® product lines also work as separate elements and have been used for different applications in the Aerospace market, specifically in working conditions where high temperature or extreme pressure are needed. Some applications include jet engines, auxiliary power units, landing gear, gearboxes and flight controls.