'Tyre Sealant, a.k.a. gunk

[Busterboo]

My local Kwik Fit is good for tyres & wheel alignment and I've used it for 6 cars over a long time. Today, ordering new tyres online to be fitted there, I read what the company says about its own version of gunk, 'Tyre Sealant' (TS). Some of the following items I didn't know:

1 TS (and, I assume, other gunk) works for punctures up to 6mm.
2 It is safe with TPMS.
3 It works for up to 125 miles.
4 It has an expiry date. (So, after writing this, I'm going to check the 'Tyre Weld' in my boot, which I'll bet is out of date).
5 It should not be used on runflats.
6 Kwik Fit (and, I assume, other tyre shops) will not repair a tyre after gunk has been used. (So, we're bu$$ered after a puncture, whether we use it or have runflats.)

Nothing earth-shattering, of course, but worth a post, I thought.

 

[Chippie]

I think the tyre weld/ gunk is a last resort to get you out of the sh*t, if whatever has caused the puncture is still in and the car can be driven then just pump it up and carry on

 

[Nizzy]

I have used Tyre Weld twice recently. On my E89 non run flat first can of weld failed, no pressure and well within use by date. I always lways carry 2 cans and other can worked well. Tyre was not repairable. On our other car again had to use tyre weld. Local tyre shop said it would take a bit longer to fix tyre as tyre weld has to be washed out and tyre dried before fixing. Cost a bit more for that reason.

 

[Pondrew]

I have a question regarding 'tyre weld' specifically, which confuses me (as have not had to use it so far):
I see on forums that people always say to carry a tyre inflator as well as the 'tyre weld', and yet reading the instructions on the can it says it fills the whole void and makes no mention of an inflator. I am confused!

 

[Southwestz4]

I have a gunk kit in the boot ...I bet mine is also out of date ...I presume you have to re inflate the tyre to push the sealant into the holed area ??
I fixed a puncture at the side of the road with a motorbike " bootlace " type kit...I won't tell you what the tyre guy said when I went for a new tyre ...lots of funny language that I didn't understand
Still...it got me there !

 

[Nizzy]

Air in the can of Tyre Weld also inflates tyre as foam pumped in. When I used 2nd can on my Z as 1st failed, I also had to use tyre inflator numerous times on journey as there was a large hole where tread had separated and pressure couldn’t be maintained!

 

[flybobbie]

Tyre gunk just a con used by car manufactures to allay fears when buyers see no spare wheels and tyres.

 

[Jasonn]

I have a question regarding 'tyre weld' specifically, which confuses me (as have not had to use it so far):
I see on forums that people always say to carry a tyre inflator as well as the 'tyre weld', and yet reading the instructions on the can it says it fills the whole void and makes no mention of an inflator. I am confused!

Tyreweld is like expanding foam (many years ago as a teen I attacked a can with an axe) it blew up and stuck to everything.

Slime/gunk is applied via an electric compressor (slime self seals according to the manufacturer) and can be used on pushbike tyres as a preventative (probably on cars too).

My local tyre place will repair slimed tyres but he says it makes the place stink of cat p*ss, so he charges more, if there is a nail or something in it it won't magically repair it, but will get you home.

 

[flybobbie]

Other than ripping out the side wall of tyres on pot hole, for which i now carry a space saver and never needed in 8 years! most flats i have experienced in 40 years are usually screws and swarf (we have no industry any more so that don't happen these days).
Result have been slow deflation where pump was sufficient to keep inflated for a few weeks before a fix.
I always carry a electric pump.
Flat tyre monitor, which no longer works on my car once came up. Tyre pressure had dropped about 8 psi to trigger.

 

[Busterboo]

4 It has an expiry date. (So, after writing this, I'm going to check the 'Tyre Weld' in my boot, which I'll bet is out of date).

Checked the 2 in my wife's car and I can't find an expiry date on either.

 

[Silverstar]

4 It has an expiry date. (So, after writing this, I'm going to check the 'Tyre Weld' in my boot, which I'll bet is out of date).

Checked the 2 in my wife's car and I can't find an expiry date on either.

Same here, checked the one in my car and there is no date. Maybe it only applies to Kwik fit kits?

 

[Busterboo]

Yes, maybe. You're probably right.

That said, carrying a second, chucking away the older one and buying a new one every 2 or 3 years might not be a bad idea.

Having one that doesn't work when you need it would be a real disappointment.

 

[buzyg]

Much prefer to repair the tyre at the side of the road using rats tails. Of course you need a compressor and have to remove the wheel. But it is a simple thing to do and the repair is good until you next need to buy a tyre, if done correctly. Need to replace the glue every so often, as it evaporates, even if not opened, from my experience.