Car tyre advice

Persevere07

As the puncture was near centre of tread (not at sidewall) I would have thought the repair should have been successful, I don’t think puncture repairs to tubeless tyres would be available to the general public if there was a significant risk of failure. Apparently, they also plug the hole as well as slap some glue on to be extra safe . Preference is the tyres that car came with new, for clarity. 

Goudy

Maybe is was bead sealer.
It's a thick, black rubberised paint that is often used on rims and tyre beads when they are difficult to seal.

They probably didn't fancy scraping and cleaning it all off the tyre. (it comes off the rim easy enough with a wirebrush though).

I'd used it myself on certain spoked and tubeless motorbike wheels. (like modern trials bikes).

facade

Was it a runflat tyre?  

Turanza are available as runflats, with Driveguard RFT technology.

Bridgestone claim they can be repaired, but mainstream places policy is not to repair runflats.

1) They are often coated with a lubricant on the inside which has to be removed for the patch to stick.

2) Most people with runflats actually run them flat which causes sidewall damage and as mentioned before, whoever inspects the tyre and signs it off as repairable puts their employer in the frame for liability if there was hidden damage that causes an accident. (Or themself if company policy is not to repair)

https://www.bridgestone.co.uk/our-company/driveguard

You could easily fix it yourself if you still have it with a mushroom patch (it isn't hard- just look at who does it) and then just get the tyre mounted again and balanced

Persevere07

No they aren’t runflats, thanks for your advice though 👍

Ectophile

ButterCheese said:

I wouldn't even entertain repairing a puncture on a tubeless tyre.  You can never gurantee that it's been done right, and even if it has, the actual process and materials they use to do it can not be quality checked to any significant extent.  It's funny how some people won't buy cheap or mid range tyres, but are happy to have some glue slapped on an expensive one

I have never known a professional puncture repair to fail.  It isn't just glue.  They use a rubber bung inserted into the tyre to fill the hole.  Any glue is only there to seal it.

Bigphil1474

You'd have to be daft (or not MSE) not to get a puncture repair done on a nearly new tyre on principal. My brother used to do tyre repairs for me when he ran a car garage, and as above, they don't just slap glue on it. 

Goudy

There are different ways to repair a puncture.

There is what I consider a temporary repair with something called a "Turd".
These are rubberised, wiggly strips that are bent in two and inserted into the hole from the outside with a tool that is part of the kit. The rubberised, wiggly strip is trimmed off and you have a temporary repair.
Temporary Repairs: How Do Tyre Repair Kits Work? – TyreSafe

There are some other types of temporary repair kits I've seen, like a screw in plug but I haven't had any experience of them. 

I've used the Turds as a get out of jail, emergency measure as the Turd can be removed and a proper repair done later.
When I have had to use one, I've treated the repaired tyre as if it was a spacesaver, so restricted my speed on it.

They are easy to carry and you don't need to bother with that can of gunk (that actually have a use by date on them), the same gunk tyre fitters don't want to wash out.
If you car has a normal gunk repair kit, it will have a compressor anyway so you don't really need anything else.



A proper repair requires the tyre to be removed from the rim and a mushroom shaped plug vulcanised (glued) into the hole for within.
6 mm Twinseal Leader Plug Tyre Puncture Repair Wired Plug Patches Mushroom 40PCS

They are available in different sizes but as the head of the patch is quite large, you can't fit them too close to the sidewall as they heads don't bend too well.

The glue they use on them is a vulcanising cement and forms a proper bound between the patch and tyre.
Obviously if there is anything in between the patch and tyre, like a special selfsealing barrier, they won't fit them.