Loon has tested many types of dip floatants before perfecting the Fly Dip. Some smell bad, are flammable and unsafe for fish and fisheries. Fly Dip is proof that anglers shouldn't have to choose between a green product and a great product. It is compatible with all flies (including CDC), dries quickly, and can take even soggy flies and bring them back to life. It isn't overstating things to say that this floatant is a "game-changer".