Product Description
Product Description
Product DescriptionWhat is FR4 Sheet Fiberglass?FR4 Sheet main technical features and applications: stable electrical insulation performance, good flatness, smooth surface, no pits, thickness tolerance standard, suitable for products with high performance electronic insulation requirements, such as FPC reinforcement board, PCB drilling pad, glass Fiber meson, potentiometer carbon film printed glass fiber board, precision planetary gear (wafer grinding), precision test plate, electrical (electrical) equipment insulation stay spacer, insulation pad, transformer insulation board, motor insulation, grinding gear, Electronic switch insulation board, etc. Properties ValueSpecific gravity1.90-2.2Martins heat resistance(lengthwise) min℃200Bending strength minlengthwisekg/cm^23500crosswise2900Impact strength minlengthwisekgfcm/cm^2150crosswise100Tensile strength minlengthwisekgf/cm^23000crosswise2200Bond strength min kfg580Surface resistivity minat room tempΩ1.0*10^13water absorption1.0*10^11Volume resistivityat room tempΩ.cm1.0*10^13water absorption1.0*10^11Tan at 50 Hz min 0.05Breakdown strength flatwise(in transformer oil at 90+/-2℃)Thickness 0.5-1mmkv/mm22.0Thickness 1.1-2mm20.0Thickness 2.1-3mmor over 3mm with one side machined to 3mm18.0Detailed Images
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