Polytetrafluoroethylene (PTFE) is a high-performance fluoropolymer widely used in sealing systems, chemical processing, electrical insulation, and mechanical engineering. It is valued for its excellent chemical resistance, extremely low friction coefficient, and outstanding electrical insulation properties.
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可精简成产品简介风格： YILONG specializes in high-precision Mica CNC Machined Parts, offering customized manufacturing based on customer drawings and technical requirements. Using advanced CNC milling, turning, cutting, and shaping technologies, we produce mica gaskets, washers, flanges, tubes, rings, discs, and other custom insulating components. With extensive mica processing experience, we ensure precise dimensions, stable quality, and reliable performance for electrical and industrial applications.
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Electrical insulation materials are essential for the safe and reliable operation of electrical and electronic systems. As industries such as power, electronics, renewable energy, and transportation continue to grow, demand for insulation materials is steadily evolving. At YILONG, we closely follow industry trends to provide material solutions that meet real application needs worldwide.
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As industrial and electronic systems become more advanced, insulation materials must meet higher requirements. FR4 glass epoxy sheet is a widely used material that provides reliable electrical insulation, strong mechanical performance, good thermal stability, and flame resistance in one solution.
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Engineering plastics offer strength, chemical resistance, stability, and lightweight performance, and are widely replacing metals in modern industry. They are used in electrical, mechanical, automotive, and food equipment applications that require durability and long service life. This guide introduces key types, properties, and applications.
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Epoxy sheets, fiberglass sheets, and FR4 sheets are widely used in electrical insulation, industrial manufacturing, electronics, and structural applications. Although these materials are sometimes grouped together because of their similar appearance and overlapping uses, their composition, performance characteristics, and application focus are quite different.
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Cast Nylon has become one of the most widely used engineering plastics in industrial manufacturing due to its combination of mechanical strength, wear resistance, low friction performance, and excellent machinability. As industries seek lighter, more efficient, and lower-maintenance alternatives to metal components, Cast Nylon continues to prove its value across a broad range of operating environments.
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As electrical systems become more compact, powerful, and demanding, the materials used for insulation and structural support must deliver reliable long-term performance under heat, voltage, vibration, and fault conditions. Although many advanced engineering plastics and composites are now available, Bakelite sheet continues to hold an important position in electrical engineering applications where stability and safety are critical.
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G10 Epoxy Sheet offers high electrical insulation, strong mechanical performance, and chemical resistance. Widely used in electronics, electrical equipment, and industrial structural applications.
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FR4 Epoxy Glass Sheet is a glass fiber reinforced epoxy laminate widely used in electronics and industrial insulation. It offers excellent mechanical strength, stable electrical insulation, UL94 V-0 flame resistance, and good machinability, making it ideal for PCBs and industrial control systems. While it performs reliably in most standard applications, it has limitations in high-frequency signal transmission, thermal conductivity, and long-term UV exposure. Overall, FR4 remains a highly cost-effective and versatile engineering material for general electronic and industrial use.
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Phenolic laminates (paper & cotton) offer strength, heat resistance and electrical insulation for industrial and electrical applications.
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