Details At depths as shallow as a few feet, even bright flies can appear dull and disappear into the background in the dark underwater world. Loon Fluorescing UV Clear Fly Finish performs just like UV Clear Fly Finish Flow, and takes the UV light that is available underwater and reflect it as a color more visible to fishFeatures: Thin UV-curing resin Allows infinite work time Cures instantly when exposed to UV light Cures hard and clear Ideal for subtle applications Includes brush applicator