Fiberglass Board vs Epoxy Board vs FR4 Board

time:2022-10-18

I’m sure many of you are familiar with insulation materials, but do you know the difference between fiberglass board, epoxy board, and FR4 board? Today, Unicomposite will take you to understand the relevant knowledge.

Different Uses

The main raw materials for the production of circuit boards are alkali-free glass cloth, fiber paper, and epoxy resin.

  • Fiberglass board: substrate fiberglass cloth
  • Epoxy board: The adhesive is epoxy resin
  • FR4: substrate cotton fiber paper

These three are fiberglass boards.

Fiberglass Board vs Epoxy Board vs FR4 Board

Different Colors

Usually, the epoxy board on the market is phenolic epoxy, yellow. Not for rigid circuit board substrates, or electrical insulation purposes. FR4 is a pure epoxy sheet of NEMA standard, the normal color is dark green, which is the color of epoxy.

Different In Nature

Fiberglass board has the characteristics of sound absorption, sound insulation, heat insulation, environmental protection, flame retardant, and so on. FR-4 is also known as a fiberglass board; fiberglass board; FR4 reinforcement board; FR-4 epoxy resin board; flame retardant insulation board; epoxy board, and FR4 light board. Epoxy glass cloth board; circuit board drilling pad.

Fiberglass board features:

Main technical characteristics and applications of white FR4 light board:

Stable electrical insulation performance, good flatness, smooth surface, no pits, thickness tolerance exceeding the standard, suitable for products with high-performance electronic insulation requirements, such as FPC reinforcement board, tin furnace high-temperature board, carbon diaphragm, precision Cruise star wheel, PCB test stand, electrical (electrical) equipment insulation partition, insulation pad, transformer insulation, motor insulation, deflection coil terminal board, electronic switch insulation board, etc.

Fiberglass boards are generally used for soft-covered base layers, and then covered with fabrics, leather, etc., to make beautiful wall and ceiling decorations. The application is very wide. It has the characteristics of sound absorption, sound insulation, heat insulation, environmental protection, flame retardant, and so on.