Another step forward in the tubeless revolution

Discussion in 'Bike trends, tech, and industry' started by trplay, Feb 13, 2018.

  1. trplay

    trplay Zen MBB Master

    Oh goody! Finish Line is supposedly coming out with a new sealant that will last the lifetime of the tire. If true it will be a major step forward for tubeless tires.
  2. RojoRacing

    RojoRacing Donut Powered Wise-guy

    magic beans don't exist
    bazzawill and super slim like this.
  3. bazzawill

    bazzawill Well-Known Member

    super slim likes this.
  4. bret

    bret Active Member

    This is actually very easy - the sealant destroys the tire from the inside out within a week. Mission accomplished.
    Gary123 likes this.
  5. Rampa

    Rampa Well-Known Member

    This is based on a type of tire sealing that has been used in farm equipment for a long time. It uses fibers that plug, rather than goo that sticks.
  6. RojoRacing

    RojoRacing Donut Powered Wise-guy

    from many of my test the biggest problem with sealant longevity it's the stuff drying out(if you have good stuff). The problem is the fibers sicking to the tires inner surface over time and not flowing with the fluid. Seems to be a bigger problem the faster the bike tends to travel as an average.
    super slim likes this.
  7. super slim

    super slim Zen MBB Master

    That means you destroy the sealant on every three fast descents with disc brakes, and 3/4 of a descent with rim brakes, when used on 180 degree bends!
  8. bazzawill

    bazzawill Well-Known Member

    "The new Finish Line Tubeless Tire Sealant promises to change that, along with delivering a new method of plugging leaks." ...

    "Finish Line says that they partnered up with MULTI SEAL who are known for their tire sealants – just in industrial or military applications. Developing a sealant for a bicycle is quite different, so we’re told that this is an all new formula that the two co-developed.

    Where the Finish Line Sealant differs is that it does not rely on liquid latex or ammonia." ...

    "Without liquid latex, the sealant has to rely on another mechanism for sealing punctures which is where the Kevlar comes in. Called FiberLink technology, the sealant is filled with small pieces of DuPont Kevlar fibers which are forced into holes when there is a leak. When enough of those fibers are forced into the hole, they mesh up and create a plug. Since the liquid carrier isn’t tasked to be the sealant as well, Finish Line was able to use a liquid that won’t dry up over the life of the tire." ...

    "After some puncture testing of our own, the sealant works surprisingly well, plugging holes up to 1/4″ and cuts up to 1cm in the tread area, and it almost sealed a 1cm cut in the sidewall. As noted in the video, small amounts of air were still escaping from the plugged holes, but that could be due to the fact that we didn’t ride the tire after it was punctured. Finish Line states that as you ride, the FiberLink mesh will continue to tighten and reinforce the plug. That seems to match up with how the sealant plugged the larger holes above. Once it was sealed at lower pressure, adding more pressure would open up the hole a little more, and additional fibers would rush in and seal it again"
    super slim likes this.
  9. Bill K

    Bill K Well-Known Member

    Bike Rumor has another review of it here:

    The good part: it sealed the nozzle when he was squirting the sealant into the tire.
    The other part: No way to tell how well it will work on road tires at 70 psi or higher.

    It definitely looks interesting.
    tiltmaniac likes this.
  10. DavidCH

    DavidCH In thought; expanding the paradigm of traversity

    I think it just won market share... now how do I get my hands on that?

    But if you try to pump it with co2 is it still that effective?

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