FR-4 PCB Board for Consumer Electronics PCB Manufacturer
FR-4 PCB Double Sided High Thermal Reliability Green Solder Mask Superior Copper Foil Adhesion with High Peel Strength Heavy Copper Flame Retardant Glass Epoxy Composite for Consumer Electronics.
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Description
FR-4 PCB Printed Circuit Board
“FR” stands for Flame Retardant, indicating that the material meets the UL94 V-0 flame retardant rating standard – meaning it self-extinguishes after ignition.
The number “4” designates it as a woven fiberglass-reinforced epoxy resin type.
It is a composite material consisting of two main components:
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Reinforcement Material: Woven Fiberglass Cloth – provides mechanical strength.
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Matrix Material: Epoxy Resin – acts as a binder that holds the fiberglass layers together.
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