LineWelder System

No Knots

Never tie a fishing knot again.

In 30 seconds this fishing line welder does it for you, creating a virtually indestructible bond where your knot would be.

After you’ve run your line through the hook, loop and load your lines into the welder and press “GO.” That’s it. In less than a minute it welds a smooth polymer sleeve over

Tauten’s surgical precision isn’t just a coincidence. One of the company's founders had experience manufacturing welding devices for medical procedures. That got him thinking about other knot-tying activities. Fishing immediately came to mind.

Whether you’re a pro or just easing your way into a new hobby, you’ll spend less time calculating what knot to tie and more time fishing.
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The perfect fishing knot? Not tying one.

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Grommet Launch Conversation

  • Trevor

    Hey everyone! I'm Trevor Attridge from Tauten Sports and I'm excited to introduce the Tauten LineWelder to you. Feel free to ask any questions you have about this great new technology! Tight lines!

  • Boyd
    5/22/2017 11:18 AM

    If you can't tie a hook or lure on a line its probably time to hang up the ol' rod and reel.

  • Trevor
    Trevor – Special Guest
    5/22/2017 11:23 AM


    That'd be a sad day. :(

    We're hoping to make it so it never has to come to that!

  • Michael
    5/22/2017 11:20 AM

    GREAT idea, but at $199 + cartridges, you won't be selling this to the general public. I don't know what it cost you to build, but overly excessive markup is going to keep a great product from ever really hitting the market. Please rethink your pricing strategy. When you do, I'll buy it.

  • Todd
    5/22/2017 11:29 AM

    @Michael I agree. Neat idea, hope it works and the market will decide what it's worth but I'd be resistant to paying more than $20 for something I can do in under 30 seconds.

  • Trevor
    Trevor – Special Guest
    5/22/2017 11:30 AM

    @Michael The LineWelder is a very highly engineered device; essentially a micro-injection molder that requires lots of advanced sensors and electronics which is a reason for its high cost. We appreciate your consideration however and hope you'll stay tuned to releases we have in the future that may be to your liking. :)

  • Terry
    5/22/2017 12:24 PM

    @Trevor I understand the engineering but also consider the engineering and cost a calculator or even a big step up, a computer and how much they enhance our lives.

  • Peter
    5/22/2017 12:38 PM

    @Trevor love your idea but it's out of my price range - good luck

  • Joe
    5/22/2017 11:27 AM

    How about fly fishing?

    Fly fishing requires line to leader, leader to tippet, etc.

    Will these welded "knots" be transparent enough?

    Also will it make too much splash when cast?

    Will it be "quiet" when pulling the lure along?

    My eyes are getting to the stage where this may be exactly what the Dr ordered...

    Thanks, Joe

  • Trevor
    Trevor – Special Guest
    5/22/2017 11:36 AM

    @Joe Thanks for your questions, Joe!

    The LineWelder can indeed connect fly line and can attach lines together to add a leader etc.

    The weld is light a buoyancy-neutral, so it shouldn't make too much of a splash, although it does have a little bit of surface area at the join.

    If you're worried about the appearance of the weld spooking fish; while we can't say conclusively that they don't react to it, we've performed many field studies covering the subject and found absolutely no difference in catch rates vs. a traditional knot; even with typically skittish species.


  • Gilbert
    5/22/2017 11:34 AM

    I fish braid to mono, braid to fluorocarbon, mono to fluorocarbon in the salt and fresh.

    What is the limitations of the unit between 2 diameters?

    Can I use the same cartridge for 4# trout gear as my 50# striper gear? It's not an uncommon day in New England that you may be targeting both (rough problem I know).

    How many connections will one get out of the box of 3 cartridges?


  • Trevor
    Trevor – Special Guest
    5/22/2017 11:39 AM

    @Gilbert The current version will accept both the line sizes you mentioned; the head is designed for ~12 lb mono/fluoro and ~60 lb braid but will connect smaller sizes with no issues.

    Each cartridge is good for about 12 welds, so a box of 3 will net you around 36.


  • Wayne
    5/22/2017 11:35 AM

    interesting Idea. my dad loves fishing but struggles with the line and the knots in his old age. its hard enough for him to thread the line thru the lure let alone get a good knot with his braided line.

    but that weld is huge, and its really expensive. I think you need to work on compacting it some. a smaller weld and a lower price. I tend to set him up a few rods with the clips on them for changing out lures so when the line brakes he grabs his other rod until I can get him set up. something like this would be great, but at that price point and the size of the weld looking awkwardly big, I'm not sure.

  • Trevor
    Trevor – Special Guest
    5/22/2017 11:46 AM

    @gravebane525 Thanks for the post!

    We're definitely sympathetic to the cost and are working on developing more affordable versions that may be available sometime in the future.

    So far we haven't seen any issues with the weld connection being too large/visible for the fish; we've conducted several field studies and found no difference in catch rates using a LineWeld vs. a traditional knot.

    Thanks again for the post; cheers!

  • Darren
    5/22/2017 11:44 AM

    Will this work with braided line?

    I use 80 lb PowerPro going to a leader.


  • Trevor
    Trevor – Special Guest
    5/22/2017 11:53 AM

    @Darren It will absolutely work on braided line! Unfortunately, 80 lb is a little too large for the current version (the cavity at the top is too small to hold it). We do have a prototype in development of a larger head that can weld larger diameters of line, however.


  • Jerry
    5/22/2017 11:53 AM

    A friend of mine was thinking along this idea. Tie a simple granny knot and add a drop of super glue! However the smell of the glue spooks the fish away !

  • Trevor
    Trevor – Special Guest
    5/22/2017 12:00 PM

    @Jerry Fortunately we haven't seen any evidence that fish can smell the LineWeld; we're even experimenting with putting scents in the adhesive material to attract them!


  • Carol Ann
    Carol Ann
    5/22/2017 12:10 PM

    Does this work for any type of fishing? Specifically flies for fly fishermen? (Sorry if silly question. Looks like a great Father's Day gift but since I don't fish I wanted to make sure it would work. ).

  • Trevor
    Trevor – Special Guest
    5/22/2017 12:30 PM

    @Carol Ann Thanks for the question! The LineWelder will absolutely work on fly lines; up to a diameter of around .013" (.33mm). The only lines we haven't made it work with yet are braided copper/steel.


  • Walt
    5/22/2017 12:46 PM

    as a weekend fisherman its just what the doctor ordered

    but I, like others, think the price is too high

    Go with an introductory special on the welder and cartridge

    sales will follow

  • Trevor
    Trevor – Special Guest
    5/22/2017 12:51 PM

    @Walt Thanks for your feedback and I hope we have a product that works for you in the future. Cheers!

  • Dennis
    5/22/2017 12:49 PM

    In fly fishing the most used knots are tippet to fly and tippet to leader. These use pretty fine line in most cases. Could you show some examples of this application?

  • Trevor
    Trevor – Special Guest
    5/22/2017 12:56 PM

    @Dennis While we don't have any images of those lines in particular; we do have some videos of attaching two lines together using the LineWelder on our YouTube channel:


    The principles are the same regardless of the specific lines used. (note; the videos use an optional line clamp accessory which isn't packaged with the Welder, but isn't absolutely necessary to attach lines together; you can accomplish the same thing just holding tension manually)


  • Roger
    5/22/2017 1:54 PM

    Sorry, I can’t see tournament anglers going with anything but a knot they tied themselves. there's too mush at stake for them. And for all us "other fisherman" it's a bit pricey. Although, this may have a lot of appeal to the senior fishing generation... with arthritis or someone who has lost their hand dexterity.

  • Larry
    5/22/2017 2:37 PM

    Would like to see a knot test on this with different type and size of lines to see if the line or knot fails. Would like to get an few loops made with different lines to see how it looks. Pictures can be deceiving. How will this hold up to a 40 or 50 lb saltwater fish? Like others it is a bit pricey when your on a fixed income. I would be more interested in buying it if there was a video showing it in action. Great idea hope it works out.

  • Trevor
    Trevor – Special Guest
    5/22/2017 2:52 PM

    @Larry Unfortunately we don't have many videos of the LineWelder in the field right now, but you can find some video of the welds being pull tested on our YouTube channel:


    Get in touch with us if you're looking for more information; we've performed multiple field tests with the device and I can definitely put you contact with our field testers. Cheers!

The launch day conversation has ended. Please direct further questions about this Grommet to our Community Experience Team.