Car Tyre Sealant? Contiseal?

[DickP]

Hi,

I am familiar with tubeless tyre sealant setups for cycling, and had understood this was never applied to cars because of it being a liquid making balancing a problem and also drying out (as it does with bikes).

I have now just seen that Continental are marketing Contiseal on a few of their tyres, which is supposed to be a sealing system to protect against punctures up to 5mm. Does this actually work? Do the tyres behave like normal non-Contiseal? Anyone got experience of it?

Thanks,

[E-bmw]

Conti-seal has been around for a lot of years now.

It is a kind of inner puncture-proof layer inside the tyre.

Has a set of SC4's (or maybe 5s) with it about 8/9 years ago.

Didn't have a puncture, so can't comment on its effectiveness.

[LunarOne]

E-bmw said:

Conti-seal has been around for a lot of years now.

It is a kind of inner puncture-proof layer inside the tyre.

Has a set of SC4's (or maybe 5s) with it about 8/9 years ago.

Didn't have a puncture, so can't comment on its effectiveness.

So if you got a puncture, you would have concluded that it doesn't work. But since you didn't, you can't conclude that it did work. Or can you?