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With UV Knot Sense you can smooth and strengthen your newly tied knots immediately. After application, it dries instantly with Loon’s UV Nano Light, UV Bench Light or with direct sunlight. Also works great for repairing damaged flies and completing household projects.



    • Ideal for coating knots for strength
    • Smoothes knots to easily slide through guides
    • Cures soft and pliable
    • Instantly cures with sunlight or UV light
    • Quickly repairs damaged flies
    • 1/2 oz

    Unconditional Guarantee

    No matter how hard you use our gear, we will guarantee it. If for any reason, you are not 100% satisfied, please contact us and we will make it right.


    Customer Reviews

    Based on 5 reviews
    Nice Product

    I've used it to seal a nick in my fly line and to cover knots in my leader so it doesn't pick up river grass when stripping the line back. Cures quick with a shot of sunlight on the river.

    Multi use product

    I’ve used Knot Sense for everything from tying flies to locking down knots on nymphing bounce rigs for clients that seem to think they are fishing the bass master classic. Great stuff!!!

    Better than superglue

    I have really enjoyed this for misc. fixes on the water. Get a nick in your floating line? Seal it shut as to not constantly catch on things. Annoying surgeon knot catching on guides? Create a glue bubble around it and smoothing things out. Heat shrink disappear on your braided loop? stop the fraying with this. I have a UV light, but when you're outside, this stuff dries quickly so work fast.

    UV Knot Sense

    It's a good product but the packaging was defected and it leaked.You did send me new tubes.

    Quality product

    First of all, I’m a Bass fisherman. I know, gasp. I use big swimbaits almost exclusively in search of trophies with braided line and a copoly leader. I use Knot Sense to coat the FG knot I tie that joins the two lines. I had been using a cheap Rayovac for years that I bought out of necessity and convenience. It was one of those things that worked fine so I was slow to upgrade. Thousands of knots later and with a couple of YT vids that feature Knot Sense under my belt, I FINALLY pulled the trigger on the official Loon light.

    This light is the great! The build quality in general is apparent and the output is outstanding. I’ll mostly be using this light at home during my pre-trip prep but I have no doubt that this light is capable of withstanding abuse in the field. I’m not a fan of docking something a star based on speculation that it may fail over time and that’s why I’m giving it a full five stars. The 18650 battery, usb charging along with the luminating on/off/ button that also serves as a low power indicator are all nice touches. Do not hesitate, get this light!