Aerospace-Grade Polycarbonate for Lighter Weight Aircraft Interior Parts
With Lexan FST9405 and FST9405T Sabic is introducing two new grades of a high performance thermoplastic material, specially formulated to help its customers create lighter weight aircraft interior parts with minimal secondary processes while adhering to strict regulatory standards.
Lexan FST9405 resin, and it transparent counterpart, Lexan FST9405T resin, represent advancements in polycarbonate aerospace-grade materials already renowned for their impact resistance, durability, chemical resistance and – importantly – compliance with regulatory and OEM standards for safety. According to Sabic, the development of the new transparent grade, Lexan FST9405T, represents a true breakthrough, as it is the first transparent, injection-moldable material that is compliant with heat release standards.
Regulatory robustness does not end with the materials’ OSU 55/55 (heat release) qualification. Both Lexan FST9405 and FST9405T pass FAR 25.853 tests for 60 second vertical burn and smoke density, as well as OEM standards for toxicity. In addition, both grades are “lot-to-lot” certified, helping to ensure consistent compliance robustness for each customer’s order.
The new materials build upon the prior generation product (Lexan FST9705 resin) by providing enhanced flow. Enhancing flow through an injection mold means less material is required to create a part, enabling strong, thin wall designs which can contribute to lighter weight finished parts. Lexan FST9405 resin is capable of molded-in colors, including bright whites, which can help to eliminate secondary processes such as painting.
Both grades offer several other benefits as well: they use non-chlorinated and non-brominated flame retardant technology and offer good scratch resistance over PC/ABS resins for unpainted parts. Potential uses of the new resins include seatbacks, kick panels, side panels, seat trims, magazine holders, cockpit dashboard enclosures and components, transparent or translucent partitions, luggage compartments and passenger service units.
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