Some years ago I drank half liter of this sealer. Yesterday I got shot and my body was sealed after giving some spins. Literally saved my life, although I was a little dizzy from the spinning.

never suffered a flat on road with this trick. plenty of dried sealant typically between tire and tube though when I swap tires, indicating that there have been many punctures that I have not even noticed. also a great tip for reducing the amount of pressure you lose over time; now I need to top up my commuter pressures only once per month at most.

Thumbs up for the Art Attack reference.

I did this to both mine and my dads bikes 3 years ago. can confirm 100% no punctures. which has allowed me to use more "racey" tyres without the hassle

I liked this experiment, but the Art Attack reference made it for me. Chapeau.

Works great for me! I've had four front wheel flats back to back (inner tape was fine, rim wasn't bent, tire brand new) and a bike shop mechanic talked me into trying out the sealant and now it's been about two months without a flat!

Spinning wouldn't happen when you're riding after you remove the nail because you have to stop to remove it, so I suggest remove it and spin as fast as possible.

If you bought a new tyre, hang it first to dry out because new tyres are still wet and soft. Drying it out will harden it and will be less punctures. Also coiling an extra inner tuber or using liners will help prevent punctures

Sealed it! Been having tube issues alot lately, and was thinking about sealant in tubes, you just helped seal the deal, (no pun intended) but nailed it for me

Brilliant! Might do the before my next Sportif

Wouldn't this end up sealing the valve itself too, such that you can no longer top up your tyre pressure?

I use conti gp4000 2 and cut-off valves on fulcrum r5 alloy rim. With the help of 2 rolls of electrical tapes and sealant, I manage to get them sealed after a 10km shakedown ride. Apparently, the feel is a lot muted on 120psi and very comfort (totally depends on how soft the tyre wall is) and the road noise sounds cool as well

I have been running Conti GatorHardShell tires with one flat in the rear in three years. Pretty good, but I always have anxiety over getting a flat, always think today is the day and I will be trying this to ease my mind even more now that I installed GP5000s for a change.

WoW! Very ingenious. Thanks for sharing that.

You can also add things like glitter, fine chopped nylon, or corn starch to improve (?) sealing properties (good homebrew sealant). There are also tyre lining tapes that weigh 24g which is about as much sealant as you put in.

great test I'm giving it a go thanks

trouble is its hard to find a light tube with a removable valve core. i take a bottle of sealant for my tubs works well

That was brilliant. Just would have liked to see you riding on the puncture sealed tire and whether once the sealant had cauterized the hole would it keep reopening the wound from the constant flexing of riding on it. Tricky to do on a presta valve although I guess possible if you had actually removed the tube from the tire. You'd have to manipulate the valve back into position from the inside once you'd added the sealant.

Good vid and experiment thanks! What about if it is rainy day how does it react with the water on the ground?

good idea, need to try this out!

I have 2 29"tires that I tried multipull times to seal with a Stans No Tube kit several years ago.It did not work and I was left with two damaged tire beads.I had some sealant left and tried an experiment.I added the sealant directly into the tire with the tubes in place.After much leaks around the damaged beads on both tires I have found that the tires have had very little pressure loss after they sealed.It's been the better part of a year since I last aired them up and they are ready to roll.These are spare tires left after my bike was stolen so they do not get used.The new bike has good tires so no need to change.

I use slime tubes, works flawless for 2 to 3 months, when the liquid starts drying off you start getting flats and that's how you know its time to put on a fresh new tube... I was getting flats every one or two weeks when I was running a regular tube setup

I use the green slime, probably very similar stuff, It works for 99% of punctures, I big staple in the tyre ( 2 holes quite big ) rusty too, rode home without noticing lol, pulled it out at home as I noticed hissing and tyre went down faster, I pumped it up again and spun the wheel and it fixed it, I've been on loads of rides since with no problems. Got a flat in a tyre today with a tiny thorn, that tyre did not have slime in but had supposedly armoured puncture proof tyres on already so I hadn't bothered with slime..

I have used stans no tube in an inner tube and had pretty good luck, it significantly cut down on flats.

Thanks for the experiment! :D

I put one of the propylene glycol based sealants like Slime in my street tire MTB. I pulled out roofing nails, staples and a piece of wire coat hanger with only a small loss in air pressure until I patch it at home.

Nice little trick; thanks for that.

"This is going to explode in my face." That's what she said.

I've always thought about trying this.

Nice idea !

Love the accent and thanks for the tips! 🚲 🛠

I use thick tubes for mtb tires...but this a great method for tubes!

Thank You

Tempted to try this with my schrader valved tubes

I used PVA glue. I put 30 gram into tube. Normally it should be flat in 2h, after PVA in 14h looks ok. It worked great so far when I pumped to 1.8 Bar. Today will pump to 40PSI and ride to test if it works under stress.

Excellent video!

Great idea but Stan's, Slime etc. have a short life and can clog up your valve. I've used Ultraseal with 100% success on motorbikes and cycles but there's also OKO and Puncturesafe and they all last the life of the tyre, can be washed out of tubeless tires with water and are used in plant, military, delivery and emergency vehicles around the world (and on the lunar rover if you believe their claims!).

read the contents of the sealant carefuly most of them are either too thin or too thick or are unstable in terms of clump forming. and the results are unpredictable. when we have had tubeless technology all sorted out, there may not be any need for this. on the other hand talking of bicycle racing tyres, there is probably always going to be the compromise of contradicting demands. the new development of graphene intelligent tyres proves that you cannot have it all. the puncture protection is a great challenge and will continue to be so from my personal experience, it is not worth experimenting esp if you like using latex tyres, some of the chemical reactions may be unpredictable and the use of liquid sealants best applied as an emergency rather than preventative measure.

I get so many flats hopefully this works

love the reference to art attack.

just wondering, did u try running the sealed non-tubeless with passenger? im just curious if the sealed non-tubeless can handle the load of a person and the bumps of the road.

Hi suppose i encounter a nail and lose pressure on the way home - could i simply pump the tire with a simple hand pump if i carry one on my bike? I just got a nail go thru my tube today and it sucked lol

Can you send us a few links to sites that actually sell tubes with presta valve cores please

i noticed this was with the presta style valve is there an alternative method for schrader style vales please?

yta but live in the very hot desert does the heat of the ground melt the seal keeping it from sealing

cool! how much weight does it add?

works better on higher volume stuff but ive run on my 30c and its better than nothing. cant really use a patch kit if you use any sealant tho.

Stunning!

Every time I have used a sealant like Slime or Fix-a-Flat in my tires, I've ended up with no flats for a good time, but that crap starts to gum up the valve core and valve seat so I had to replace the tubes because of slow leaks at the valve requiring me to top up the air every other day.

This already exists. It's saved me numerous times from walking home. The only holes the slime couldn't plug were made by large pieces of metal (one of which was a construction staple).

Need to know the brand name of the best tube tire quick sealant.

omg i ride my bike everyday & didn't even know that they invented something like this just wow respect for the idea owner

Where can I get one of them little spanners?

How long does this sealant last before eventually drying out?

I would just carry a couple of lightweight spare tubes....this stuff is heavy ( and that`s heavy as rotational weight = massive misuse of energy )...plus could unbalance a well set up wheel .

what sealant did you use?

Great video, but my question is, after the puncture will it hold 120 to 130 psi? Would this work for touring 4 k miles?

I did this and it worked sort of. I rode 60km not knowing that I had a puncture. The sealant did the job. The tire didn't deflate but the sealant kept oozing out. Only drops. It splattered on to the frame. In the end, I had to replace the tube.

will it do that if we keep the sealant in the tube for a long time? like it wont dry off or something?

NoTubes tire sealant used here. Is this also effective for tubular tires? Clincher and tubeless tires are discussed here, not tubular tires.

Tried it.. It will mess up your valve, which will make it hard to inflate... Just use a bottle of Vittorias sealant.. It's inflate and go... Or just swap tube

What is the name of the sealants, getting tired of patching tubes with patches

Where can i buy this and would it work for a mountain bike

Amazing!!

What’s the product name and where I can get that thanks ?

Would it make handling and different?

We used to add a charge flat repairs that had slime in a tube. Makes an awful mess. U10

The Slime goes dry within a year, so I'm wondering how long this lasts? I bought some at £3.80 per bottle, so even if it lasts 6 months that's worth it, or even 3 months. I always used punture proof tyres because I get a lot of puntures in my area, sometimes several times a day. But they say they are heavy and slow with no fun factor, and also have poor grip because they are tougher and less flexible. It will be interesting to try this with regular tyres.

You're not "puncture proofing" your tires -- you're filling the punctures with glue. Which means your tires could be full of holes and you'd be none the wiser. For this and many other reasons that readily come to mind (and are stated elsewhere here), the glue-in-your-tubes approach is a BAD idea. One alternative: a puncture-resistant performance tire like Continental's Attack and Force models. Or if you are really paranoid about flats, their Grand Prix 4000. On the other hand, if you insist on riding "competition-weight" clinchers like Michelin Power, you are going to get a LOT of flats.

Isn't this the same principle as slime someone would normally put in a inner tube .?

I sometimes ride a beach cruiser with 26 x 2.125 tires. Where can I find a solid inter-tube tire here in America and which is the most puncture resistant?

Looks like Slime which is very good stuff. it's designed for tubeless not tubed tires. It doesn't dry out. I suspect it won't work as well in a tube. He also should have cleaned out the valve with a cotton bud or similar before putting the valve back in.

Sealing a nail puncture is impressive. What is the name of the sealant used here?

How does it seal an inner tube because the tube expands and makes the hole Larger, I can understand it working on tubeless tyres

Am using 28mm touring tires with folding tires that have had the edges cut off put in. So it's like two tires in one, not done many miles yet but with update in a month or so. Its a old hack from back in the day. 🚲

After a nail punctured side of tire, the Sealant caused my tire and tube to come off rim and got tangled in rear sprocket

brilliant

What about if get warm in a latex tube and blow up?

yes

how may ml of sealant?

Great Video! I've tried Stan's, Vittoria, Giant - 2oz bottles into the tube. I tested by pushing thumb tacks into the tire. Either it just doesn''t seal at all or it loses most of the air (I run 60 psi in 35mm CX tires) before sealing. When I pump it back to 60 psi - it starts to leak again. It seems to be more reliable in low pressure applications such as MTB tires or in full tubeless road tires. But take a look at races like Dirty Kanza - expensive tubeless systems being run by many pro cyclists - punctures galore! I would love it to work but it seems unreliable at best. I use 28mm folding tire with sidewalls cut off - inserted into my 35 mm tires as puncture breaker. They weigh about 150 grams per strip (the 28mm insert). So far, only a pinch flat as I ran the pressure too low at 50 psi. You can always carry a 2oz bottle of sealant in your back pocket - for emerg situation - and give it a try instead fiipping your bike over and getting out your tools.

My mountain bike with anti puncture tyres that seems immune to punctures, my road bike seems to collect them for fun.. have to try something like this. Was considering new tyres, trying to lever off a tubeless ready tyre on a roadside is no fun. You used to get gunk like this though 20 years ago long before tubeless tyres were a thing SPECIFICALLY just to stop punctures (for some reason I remember it might've been green), I'm guessings it's better now?

What type of sealant brand would any of you recommend

But sealant doesn't work on road tires at 10,000 feet. I know because I raced Pikes Peak in 2018, not knowing I had a sealed puncture in my race wheel 'till I was at the start line--I saw the shiny spot where the sealant had plugged a hole. 200 feet into the race, the hole opened up. The air pressure different opened the hole and I was fortunate enough to convince the organizers to give me a restart. They'd repeatedly said this was a mass start time trial, so since I was only a few hundred feet down the road, they allowed me to swap wheels and restart.

How about a Snake Bite type of puncture, will this also work ?

You don't need to remove the valve core, and you can just use an old pump to inject the sealant, just rinse out the pump afterwards.

Has anybody tried this with schrader valves? (car tire valves) They are quite common on bicycles here in Europe, figured I would try if this method works for the bigger valves. Does anybody have experience with this? Thankful for answers! =)

only for no flat situation such as need to not stop in weather or traffic like commuting.

How does it work vs the dreaded green monster ( goat's head thorn weed......CA, AZ, TX, NV, NM ).

What kind of valve is that on your tire, my Walmart bike just has little plastic caps lol will it work on any tires or just fancy British tires lol

Is this good for mountain bike tires??

Hmm... I'm getting my first bike (Specialized Allez E5 2016) tomorrow and I'm wondering if I should buy tube liners or tube sealant...

What kind of sealant??

How much the weights ?

I don't see why we don't see more of this.

will this work on a car tire??

I don't get this video. So you put sealant in an inner tube? We have been doing that for years. Am I missing something?

Hi i have a road bike and i have a schradier valve how do i use the selant on that thanks. 🙂

All the roadies discovering sealent for the first time is amusing; it's been a must have in MTB for a long time now

its works but not always, my tubeless bike have more than 2000 km no puncture but ebike with milk and normal inner tube catch flats two times last week