Epoxy phenol aldehyde glass cloth laminate sheet

3420 Epoxy phenolic glass cloth laminated sheet is made of alkali-free E-glass cloth impregnated with epoxy resins and phenolic resins by processing under heat and pressure.This product having high mechanical and dielectric properties,fine heat and humidity resistance,can be used in electrical machine and devices as insulating construction parts in moist cirecumstances and in transformer oil. main parameter as bellow Item unittype3240 3240C Verticality Flexural strength ≥(normal condition)Mpa 340 340 Verticality compressio strength≥ Mpa 350 350 parallel impact strength ≥ KJ/m2 33 33 Parallel shear strength ≥ Mpa 30 30 Tensile strength ≥ Mpa 240 240 Verticality electrical strength(90±2in oil),plate thickness:1mm MV/m 14.2 14.2 Parallel to punch through voltage(90±2in oil) KV 35 30 Comparative dielectric constant(50Hz)≤ 5.5 Dieletric loss factor(50Hz) 0.04 density g/cm3 1.7-1.9 1.7-1.9 color natural natural size mm 1020x2020 1020x2020