Description :

- FR-4(or FR4) is a grade designation assigned to glass-reinforced epoxy laminate sheets, tubes, rods and printed circuit boards(PCB)
– FR-4 is a composite material composed of woven fiberglass cloth with an epoxy resin binder that is flame resistant FR-4 glass epoxy is a popular and wersatile high-pressure thermoses plastic laminate grade with good strength to weight ratios.
– With near zero water absorption, FR-4 is most commonly used as an electrical insulator pessessing considerable mechanical strength.
– The material is known to retain its high mechanical values and electrical insulating qualities in both dry and humid conditions. 

Application :  

- FR-4 is th primary insulating backbone upon which the vast majority of rigid printed circuit boards (PCB) are prodeced. A thin layer of copper foil is laminated to one. Or both sides of an FR-4 glass epoxy panel. FR-4 is also used in the construction of relays, switches, standoffs, bursars, washers, are shields, transformers and screw terminal strips.

Size : 

- Thickness : 0.1T ~ 10T (Thickness, size and Flammability product can be customized)