Pentamethyl Diethylenetriamine (PC-5) in High-Temperature Engine Component Coatings: A Comprehensive Overview Abstract: Pentamethyl diethylenetriamine (PC-5), a tertiary amine, possesses unique properties that make it a valuable additive in high-temperature engine component coatings. This article provides a comprehensive overview of PC-5, covering its chemical and physical properties, synthesis methods, applications in high-temperature coatings (specifically focusing on...