Loon Outdoors UV Knot Sense Fly Fishing Coating helps craft better quality flies and provides peace-of-mind at the end your line by coating your knots. The primary point of friction and abrasions, reliable fishing knots require detailed attention. Knot Sense coating provides a UV-curing resin compound that dries to a soft, pliable consistency yet protects knots from harmful abrasions and friction while increasing glide through guides. Knot Sense Fly Fishing Coating also provides quick on-the-fly repairs to damaged fishing flies with long work time and instant curing under sunlight or UV light. Includes brush applicator. Manufacturer model #: ACC002. Instantly cures with sunlight or UV light Cures soft and pliable Ideal for strengthening knots Makes knots smooth for easier slide through guides Perfect for quick repairs to damaged flies