G-10/FR-4 is a thermosetting industrial laminate consisting of a continuous filament glass cloth material with an epoxy resin binder. It has characteristics of high strength, excellent electrical properties and chemical resistance not only at room temperature but also under humid or moist conditions.
G-10/FR-4 glass epoxy laminate meets the specifications of Mil-I-24768/27
G-10 & FR-4 also meet
LP 509 & MIL P 18177 Type GEE
Commonly referred to as Micarta, Bakelite and more.