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The Flame-retardant Epoxy Board is a rigid, high-performance composite material made from premium epoxy resin reinforced with glass fiber fabric, offering exceptional flame resistance, electrical insulation, and mechanical strength. Engineered to meet stringent safety standards (typically UL 94 V-0 or V-1), this board self-extinguishes quickly upon flame exposure, minimizing fire spread and smoke emission. It also features high dielectric strength, low moisture absorption, excellent heat resistance (operating continuously from -40°C to over 130°C), and outstanding dimensional stability. The Flame-retardant Epoxy Board—commonly known as FR4 or FR5—is widely used in electrical and electronic applications such as switchgear insulation, busbar supports, transformer spacers, PCB testing fixtures, and industrial control panels. It can be easily machined (cutting, drilling, punching, milling) without delamination or cracking. For a safe, reliable, and long-lasting insulation solution in fire-sensitive environments, choose our Flame-retardant Epoxy Board. Available in a variety of thicknesses, colors (including natural yellow, green, black, and white), and sheet sizes to suit your project needs.
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