Different uses. The main raw materials for PCB production are alkali free glass cloth, fiber paper and epoxy resin. Fiberglass board: base material: glass fiber cloth, epoxy board: the binder is epoxy resin, FR4: base material, cotton fiber paper. All three are fiberglass.
颜色不同。通常市面上的环氧板是酚醛环氧，黄色。不作为硬质线路板基材，电工绝缘用途。FR4是NEMA标准的纯环氧板材，正常的颜色是墨绿色，这是环氧的颜色。也有黄色的，一般说黄色的FR4叫黄料，白色的（绿色）叫白料 。FR4 比 环氧板贵，玻纤板无法确认价格。
Different colors. Generally, the epoxy board on the market is phenolic epoxy, yellow. It is not used as base material of hard circuit board and used for electrical insulation. FR4 is NEMA standard pure epoxy board. The normal color is dark green, which is the color of epoxy. There are also yellow ones. Generally speaking, the Yellow FR4 is called yellow material, and the white (green) is called white material. FR4 is more expensive than epoxy board, the price of fiberglass board cannot be confirmed.
Different in nature. Fiberglass board has the characteristics of sound absorption, sound insulation, heat insulation, environmental protection and flame retardant. FR-4 is also known as fiberglass board; fiberglass board; FR4 reinforcing board; FR-4 epoxy resin board; flame retardant insulating board; epoxy board, FR4 smooth board. Epoxy glass cloth board; circuit board drilling pad.
Epoxy board, glass fiber board, molecular structure contains active epoxy groups, can cross-linked with a variety of curing agents to form insoluble, insoluble polymer with three-way network structure
Epoxy glass fiber cloth substrate is a kind of substrate with epoxy resin as adhesive and electronic glass fiber cloth as reinforcing material. Its adhesive sheet and inner core thin copper clad laminate are important substrates for making multilayer printed circuit boards.
Properties: the mechanical properties, dimensional stability, impact resistance and moisture resistance of epoxy glass fiber cloth substrate are higher than those of paper substrate. It has excellent electrical performance, high working temperature and little influence on its performance by environment. In the processing technology, compared with other resin glass fiber cloth base plate has great advantages. This kind of product is mainly used for double sided PCB, and its consumption is very large.
应用：环氧玻纤布基板，应用更广泛的产品型号为FR-4 ，由于电子产品安装技术和PCB 技术发展需要，又出现高Tg 的FR-4 产品。
Application: epoxy glass fiber cloth substrate, the most widely used product model is FR-4. Due to the needs of electronic product installation technology and PCB technology development, FR-4 products with high Tg appear again.
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