FR4 Black: A Robust Cornerstone for the Electronics Industry
FR4 black epoxy board is made of fiberglass cloth impregnated with epoxy resin as adhesive, dried and hot-pressed into a board-shaped insulating material. FR-4 is a flame-resistant material grade code, which means that the resin material must be able to self-extinguish after combustion, it is not a material name, but a material grade, so the […]