Epoxy Sheet for Circuit Boards is a high-performance electrical insulation and structural laminate widely used in printed circuit boards, electrical equipment, electronic assemblies, industrial control systems, battery modules, power equipment, and precision insulating components. Also known as an Epoxy Board, Epoxy Fiberglass Sheet, FR-4 Sheet, Glass Epoxy Sheet, or, in certain industrial markets, 3240 Epoxy Sheet, this material combines the mechanical strength of woven glass fiber with the electrical insulation and dimensional stability of cured epoxy resin.Epoxy Sheet (Epoxy Board / FR-4 Sh...