Silicone Mucilin Green Fly, Line and Leader Floatant Fly Line Dressings & Applicators The Fly Shop 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 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 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