FR4 (or FR-4) is a NEMA grade designation for glass-reinforced epoxy laminate material. FR4 is a composite material composed of woven fiberglass cloth with an epoxy resin binder that is flame resistant (self-extinguishing).

"FR" stands for flame retardant, and denotes that the material complies with the standard UL94V-0.

FR4 glass epoxy is a popular and versatile high-pressure thermoset plastic laminate grade with good strength to weight ratios. With near zero water absorption, FR4 is most commonly used as an electrical insulator possessing considerable mechanical strength. The material is known to retain its high mechanical values and electrical insulating qualities in both dry and humid conditions. These attributes, along with good fabrication characteristics, lend utility to this grade for a wide variety of electrical and mechanical applications.

Epoxy Fiberglass Cloth Laminated Sheet FR-4

Thickness: 0.2-50 mm

Dimensions: 1020*1220/1220*2440 mm

Temperature Resistance: 180-200℃

Color: light green / black (can be customized)

Features: Flame retardant, All colors are available, Bein good mechanical and insulating property even inhigh temperature conditions

G10/FR4 glass epoxy sheet

Standard color:Green,Black,Yellow

Standard size:1020*1220mm,1220*2440mm

Standard Thickness:0.2-50mm

Features/fiberglass epoxy plate FR4/G10 sheet

● Better insulating properties than Fish Paper(Vulcanized Fiber)

● Excellent Strength properties

● Anti-Fire properties

● Retains 50%flexural strength at 150’C

● Performs special well in humid environments

Application/fiberglass epoxy plate FR4/G10 sheet

● Sensitive electronic equipment

● Circuit Board manufacturing

● Relays and Switches

● Communication systems

● Mechanical and appliances lines

The company are specialized in providing Electrical Polyester Non-woven Fabric that is made of insulation laminated paper DMD(with product thickness： 0.02 mm-0.23mm, and width： 510mm-1500mm), Insulation Composite Laminated Material(DMD,NMN,NHN,100% saturated DMD,Aramid Paper,Diamond dotted paper),Insulation fiberglass Sleeving(2715PVC  fiberglass sleeves,2751Silicone rubber fiberglass sleeves,2740 Acrylic fiberglass sleeve, 2753 Silicone fiberglass sleeves, PU fiberglass sleeve) , Mylar film(Polyester film, Milky white mylar film), Insulation sheets(3240,G10,FR4,etc.) and other electrical insulating material. They are used in motor,transformer, generator,reactor,etc. We have gained ISO9001,SGS and material ROHS and REACH certificate.