Polyphthalamides are a type of partially aromatic Nylons. Most PPA grades are filled(glass and/or mineral) to enhance stiffness for high temperature applications where Nylon 66 would not perform. PPA is used to replace applications that would likely otherwise be made in a metal or higher priced thermoplastic. PPA's are commonly used in Appliance, Automotive, E&E, and Industrial applications requiring high heat and good chemical resistanced performance.
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