Superior Electrical Insulation: Engineered with exceptional dielectric properties, our FR4 fiberglass sheets ensure reliable performance in high-temperature and high-humidity environments. Durable Construction: Crafted from glass fiber and epoxy resin, these sheets offer excellent mechanical strength and long-lasting electrical insulation for diverse applications. Versatile Use Cases: Ideal for PCB prototyping, electronic repairs, motor insulation, and printer insulation, making them essential for hobbyists and professionals alike. Stable Performance: Featuring outstanding dimensional stability and moisture resistance, these smooth-surfaced sheets are user-friendly, perfect for both beginners and experienced users. Specifications & Packaging: Each pack includes 4 watergreen FR4 epoxy insulation boards, available in multiple thicknesses (0.5mm to 2mm) to meet your specific project requirements., Manufacturer: HIYCYOHDI