1. The FR4 material belongs to fiberglass, while the 3240 material belongs to epoxy resin. And FR4 has better temperature resistance and performance than 3240. Generally, the conventional color of FR4 is water green, while the conventional color of 3240 is yellow.
2.The color of FR4 epoxy board is very natural, with a slightly jade like feel, while the color of 3240 epoxy board is a bit blinking.
3.FR4 is an improved version of 3240 epoxy board. The flame retardant performance of FR4 epoxy board meets the national UL94V-0 standard. 3240 epoxy board does not have flame retardant properties.
4. FR4 can have a natural extinguishing function in the event of a fire.
5. FR4 has better dimensional stability than 3240, and during the pressing process, the thickness tolerance control of FR4 is also much better than 3240, making it more suitable for processing.
6.3240 epoxy board is halogenated and not very environmentally friendly for the environment and human body. It also does not comply with the country's green and sustainable development strategy. The opposite is true for FR4 epoxy board.
