daiwa saltist 5000 being discontinued Spin 5000, Reels have now added the Monocoque Body (MQ) for even more power and a more compact frame Daiwa SALTIST5000 Saltist Saltwater Spinning

They can mix in various polymers to give the line color and refractive properties like fluorescent for being seen under a black light for night fishing

Another application fluorocarbon is great for is using it as a leader

The nine-carrier X9 braid is round and smooth to reduce resistance as it travels through the line guides for a long, accurate cast

Coatings might also be added to braids that make them more slick, supple, or even rigid but those coatings diminish after extended use, and your braid might lose some of its original characteristics

The narrow diameter allows braided line to cast farther and sink faster, too