Standard and classification of insulation sheet FR4:
Insulation sheet FR4 Industry Association:
NEMA American Electrical Manufacturers Association of a insulation material standard, with the corresponding IEC International Electrosteel standard sepGC202, there is no fullcorresponding standard.
The nearest domestic standard is 3240 epoxy laminated glass cloth, 3240 corresponding to the IEC International Electro-Industrial Commission standard is EPGC201, and EPGC201 and EPGC202 only the difference in flame retardant performance. Therefore, it can be simply considered that the FR-4 is an improved product of the 3240’s enhanced flame retardant performance.
Insulation FR4 sheet classification
Fr-4 epoxy glass laminate surface colors are:
Yellow FR-4, white FR-4, black FR-4, blue FR-4, etc.
FR-4 is a substrate used by THE PCB and is a category of plate materials. The plates are classified according to the enhanced materials and are mainly classified as the following four:
1) FR-4: Glass cloth substrate
2) FR-1, FR-2, etc.: Paper substrate
3) CEM series: composite substrate
4) Special material substrate (ceramics, metal base, etc.) FR-4 by a special electronic cloth immersed in epoxy phenolic resin and other materials by high temperature and high pressure heat pressure made of plate laminated products.
Features of insulation sheet FR4: with high mechanical performance and dielectric performance, better heat resistance and moisture resistance, and good machining.
Application of insulation sheet FR4: Motor, electrical equipment as insulation structure components, including a variety of switches FPC reinforcement electrical insulation carbon film printed circuit board, computer drilling pad mold treatment equipment (PCB test frame) and can be used in wet environmental conditions and transformer oil.
Insulation plate FR4 application
FR-4 epoxy glass fiberboard (epoxy plate), the main material for imported semi-curing tablets, color has white, yellow, green, room temperature of 150 degrees C still have a high mechanical strength, dry state, wet state electrical performance is good, flame retardant, for electrical, electronic and other industries insulation structure components, the use of imported raw materials, Domestic press espresses and standard technology carefully manufactured, the main specifications are 1000 x 2000 mm 1020mm x 1220mm, because there are the advantages of raw materials, to ensure high quality and low price, timely delivery, at home and abroad have a solid customer base, and enjoy a high reputation.