FR4

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FR4 is a class of fiberglass epoxy laminate that can be used for making circuit boards. It may contain bromine.

It stands for Flame Retardant 4.

FR-4 is a fire-retardant G-10 glass-epoxy laminate.[1]

See also[edit]

  • G-10, another class of laminate

References[edit]

  1. ↑ Catalog, Sortable. "G-10 Glass Epoxy Laminate". https://www.boedeker.com/Product/G-10.
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