For those who pay attention to our website, everyone should have a good understanding of the FR-4 materials (such as: FR-4 epoxy board, FR-4 glass fiber board), I have talked a lot before, then FR-5 and What are the similarities and differences between FR-4?
The same points of FR-4 and FR-5:
1. Epoxy glass fiber cloth laminates (FR-4 and FR-5) are made of imported epoxy resin impregnated with imported alkali-free glass fiber cloth, and added with corresponding imported flame retardants, adhesives and other additives; A hard plate-shaped insulating material that is hot pressed.
2, product specifications size: 1020 * 1220mm, 1000 * 2000 mm (conventional); 1200 * 1200mm, 1200 * 2400mm, 1500 * 2400mm (customized);
Color: yellow, water green, white.
The difference between FR-5 and FR-4:
1, high temperature resistance: FR-4 is generally 150 degrees and the maximum temperature of FR-5 is 160 degrees;
2, heat resistance: FR-5 is about twice the ordinary FR-4;
3, water absorption rate: FR-4 is (D-24/23, plate thickness 1.6mm): ≤19mg, while FR-5 water absorption rate is almost 0; after 24 hours of water immersion, the water absorption rate is only: 0.09%;
4, thermal stress: FR-5 thermal stress reaches 288;
5, the coefficient of thermal expansion is smaller: suitable for high-layer boards;
Our factory specializes in processing FR-4 epoxy board, and it can also be used for free proofing. The most important thing is that we have more than ten years of mature experience. The quality is absolutely guaranteed, the price is excellent, welcome inquiry!