So lately in the market a lot people sell tyre sealant for emergencies like punctured or flat tires. So since this sealant will squeeze into the tires

I wonder how safe is that ? How bout changing the flat tire when you visit? while the sealant are all over inside. It will most likely all over the rim part so does that mean your whole rim is consider the end and need to replace too ?


https://www.youtube.com/watch?v=kLng91oaBUQ

http://rayminofficial.com/flatfix/

Anyone tried something like this?


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from what i know, it basically allowed you to temporary patch the puncture and allow you drive to the next available tyre shop to get the tyre patch properly.
I dont think the liquid inside can do any damage to the rim.

Will work under certain circumstance. The liquid will form a layer of rubber inside the tire and seal the hole. So, the liquid has to flow across the puncture. So, I would think that the tire needs to roll to ensure all the holes covered. So, hard to say what will happen if the puncture is on side wall of the tire.

If the hole big and loss of air too fast, it is difficult to the tire up to pressure again before the seal works. So, probably need portable pump as well.

No, I never use one but since this is not new and has been on market so long until now; I believe it works like what I imagined above

nothing much will happen until it is time to change tyre. the one who will change the tyre will &@@(*$@( you as it will contaminate his equipment i.e tyre changer machine, pry bars etc.... also possible sealant spray out when they pull out the air valve to release pressure b4 changing.

these was told by my tyreman, not made up. so remember to tell them you put in these sealant b4 they start their job.

practically useless :
1) most drivers not sure how to apply properly
2) can't physically see the "liquid" actually flow into the puncture
3) can only fix small punctures; anything larger than a medium sized nail, the sealant is useless
4) the tyre that has been pumped with sealant will still need to be changed when reached the nearest tyre shop. The tyre is unusable.
5) it is a whole lot of mess

The reason for the rise of such useless sealants are due to emissions/efficiency reasons. No spare tyre = less dead weight = less fuel consumption = lesser emission

So, our local tyre shop method of using tyre repair patch is actually more effective. Nothing beats a proper spare tyre in real life.

Another way to put it, the severity of the puncture that a sealant can actually fix is minimal enough that you can slowly drive to the nearest tyre shop. If totally flat, without an air pump, it is useless despite having sealant.

This post has been edited by wkc5657: Nov 30 2017, 11:21 PM

If you hit a big puncture and the air escapes quickly you are unlikely to be able to repair with the sealant. The sealant will help for slow leaks like a screw or nail embedded in the tyre which takes many hours to get flat. In this case you can just use a 12V air pump to pump in some air and drive to the tyre shop. Using the sealant means buying a new tyre.

I would prefer to carry a portable air pump rather than the sealant. You can also invest in a tyre pressure monitoring system to detect slow leaks. They are not very expensive and they show you your tyre pressures in real time so you know when to pump up.

that why car without spare tyre use run flat (i hate it, too expensive) .......

i know the feels about it

BMW only provide 2 years warranty for it. Under that period will feel safe and secure until when its over. They start charging overly expensive and had to go outside for purchase

Don't be so excited during the warranty period, they only cover based on the remaining thread, you won't get full coverage for new tires, means if you used 30% of that particular damaged tire, you have to pay the 30% in order to get the new tire, and it's based on the SC retail price.

Is it true...using the sealant means the tyre has to be replaced?

Yes, it's true. The tyre usually has to be replaced. The sealant is not considered permanent repair but most tyre shops will refuse to repair a tyre where sealant has been used. It's messy and hard work removing the sealant and may contaminate their equipment. Even if you managed to get the tyre repaired it will give vibrations from balancing problem. In the end you still need to replace it.

Unless you are in an emergency situation like having a flat at night in an unsafe area don't use these sealants. You will end up buying a new tyre just because of a small puncture.

Honda city & jazz hybrid 2017 got no spare tyre.

and they gave this tyre repair kit crap.

damn!

Yep, true to the nature. A patch cost like rm10 will in the end cost you a new tyre. Then the wear period of that single tyre is unlike the other three which is quite a haunting if you plan to use the tyre to the max life, keeping separate check/service tab.

What's worse is that they don't even warn the owner that using the sealant means replacing the tyre. You probably need to replace two in order to match the tread wear.

what i worry is the sealant application and the quality of it. Looks like pain