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Key Properties:
Excellent Electrical Insulation: High volume and surface resistivity, low dielectric loss, stable performance under high voltage and high frequency
High Mechanical Strength: Strong resistance to bending, compression, and impact, with tensile strength 2–3 times that of bakelite
Good Heat Resistance: Standard grades withstand 120–150°C; high-temperature grades (e.g., FR-4) can handle up to 180°C
Chemical & Moisture Resistance: Resistant to weak acids, alkalis, oils, and organic solvents; low water absorption
Dimensional Stability: Low thermal expansion and minimal deformation under temperature/humidity changes
Easy Machinability: Can be cut, drilled, milled, and stamped with conventional techniques
Common Applications:
Epoxy sheets are widely used in electronics, electrical engineering, and industrial manufacturing—including PCB substrates, insulation components for switches and transformers, motor slot wedges, mechanical fixtures, and aerospace insulation parts
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