As previously noted, KVD L&L will make a noticeable difference in any type of line you use it on, although it was specifically developed for flourocarbon and braid. Unlike other products which are petroleum based and will only coat the line, L&L bonds to the line and is only removed through friction. It will also not harm your reels. Also, be sure to use it on spinning reels. It really helps with the coiling, etc., you get with spinning reels.