Dry Fly Floatant Mucilin Silicone Green Solid Paste For Modern Fishing Lines & Fly Floatant Fly Line Dressing While you use and abuse your gear this summer, you'll probably notice your fly line starting to get a bit too heavy. Never fear, Mucilin is here!! Red and green label Mucilin Mucilin Fly Line Cleaner One of the bestselling Mucilin brands trusted by anglers worldwide. For use on all fly lines simply submerge the pad in water and squeeze several times to Fly Tying Floatants & Oils