Someone told me this winter to us it to prevent line freeze up. And it did work. Will it help your reel against the damages saltwater can do? Heading south for some red and speckled trout fishing. I have reels that i use in the saltwaters yet they are kind old and slow. Like to take on of my favorites . salt water in my experience doesn't treat all reels the same. It'll freeze some of the up yet others are not phased by it. Guess thats difference between quality reels.