Phenolic resin (PF) is a representative thermosetting resin that forms a three-dimensional network structure when heated and, once cured, does not soften even when reheated. Due to its excellent heat resistance, electrical insulation, mechanical strength, chemical resistance, dimensional stability, and flame retardancy, it is utilized in a wide range of industrial fields. Key processing methods include compression molding and injection molding for thermosetting resins. Its applications are diverse, including housings and switches for electrical components, brake pads and clutches for automotive parts, handles for cooking utensils, laminates, and binders for castings. It particularly demonstrates its true value in high-temperature environments and high-voltage applications.