Loon UV Colored Fly FinishDESCRIPTION The fastest and easiest way to add color to a fly UV Fly Finish is the colored UV resin companion to UV Clear Fly Finish and does exactly what you want it to do: instantly provide color and complexity to flies. The Hot colors are perfect for adding hot spots and trigger points, providing a subtle glow. Lighter colors offer a life like translucence, presenting the opportunity to build flies with a depth that couldnt be achieved otherwise.