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Materials: Flame-Retardant Nylon 66 for Unattended Appliance Connectors

Ascend’s newest grade sports the highest possible glow wire ignition temperature rating.


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An unreinforced, flame retardant nylon 66 compound for use in unattended appliance electrical connectors  is the latest addition to a broad line of specialty nylon 66 compounds from Houston-based Ascend Performance Materials, now the world’s largest fully-integrated nylon 66 producer.

Vydyne FR350J reportedly sports a “best-in-class” glow-wire ignition temperature (GWIT) of 960 C at all thicknesses up to 3 mm. Molded parts have achieved glow-wire end-product test values of 750 C at all thicknesses. The material also achieves PLC 0 ratings in hot-wire ignition (HWI) and high-amp arc-ignition (HAI) tests according to UL 746A. In addition, the compound carries an RTI electrical rating of 130 C and UL 94V-0 rating down to 0.4 mm.

Vydyne FR350J also boasts superior melt flow and requires lower pressure to fill molds. The compound has a wide processing window and is color stable for natural and colorable applications. The FR additive package is said to exhibit low corrosion for improved electrical contact performance.