What is FR4 materials ?

What is FR4 materials ?

1. FR-4 is a code name for a flame-resistant material grade, most of which are composite materials made of so-called Tera-Function epoxy resin plus filler (Filler) and glass fiber.

3. Main technical features and applications: electrical insulation [1] stable performance, good flatness, smooth surface, no pits, thickness tolerance standards, suitable for products that require high-performance electronic insulation, such as FPC reinforcement boards, PCBs Drilling backing plate, glass fiber meson, potentiometer carbon film printing glass fiber board, precision planetary gear (wafer grinding), precision test plate, electrical (electrical) equipment insulating stay partition, insulating backing plate, transformer insulating board, motor Insulators, grinding gears, electronic switch insulation boards, etc.