Bike seal puncture prevention , anyone got some ???

[Graham53]

It's got me out of trouble before.
There are different brands of it under different names but it's all similar stuff, it just runs in liquid form inside your tyre then once a puncture occurs it will plug the hole and solidify.


I used it a few years ago when i had a slow leak on a tyre that had a decent amount of tread on it so thought i'd give it a go.


Pro's: Tyre literally stays the same if punctured. I rode a few miles to a tyre place with a nail still in place with the tyre fully inflated, after i'd heard the pop of it going in, then the noise of the nail on the road.
Perfect if you're going touring or somewhere obscure where a puncture could be troublesome.


Con's: Can be tough to get inside the tyre, you'll need a proper airline, and something to poke down the valve as beads of rubber can jam it up. It's certainly not as straightforward as just pouring it in.
Nobody will repair a tyre with this stuff inside, it's way too messy and time consuming to even attempt to fit a plug for example.

I asked that about repairing the tyre and was told that there was no need as this stuff seals the tyre as a permanent repair for the life of the tyre with no speed restriction and the tyre they had on demo had 13 holes in it and still air tight.
I must admit I got it as I'm doing some touring this year and thought if can save the trouble of a puncture at 3am going to the Lake District or similar then it'd be worth it .
I was thinking about seeing if a tyre place would put it in if I got new tyres at the same time save me the trouble of putting it in
Thanks Darrsi, at least now I know I've not bought a bottle of snake oil ????