Tyre Repair

To elaborate, vulcanising and also the use of mushroom headed plugs are good repair techniques but can only be used if the damage is in a comparatively flat part of the tyre that does not flex much.

As far as I am aware, if an emergency repair compound has been used, the tyre cannot be repaired in any circumstances.

 You implied ..... 

As far as I' m aware,  you're incorrect as I know at least some of them are water based.

It would seem repairs are now carried out to British Standard BSAU159. I don't think these are law, but presumably an insurer might take a dim view of a repair that fell outside its guidance. Possibly it is even mentioned in the miles of small print.

We live in a throw away society .Tyre manufactures want to sell Tyres.I agree with British standards and do not want to jeopardise safety.What I am saying is surely there should be a way of repairing these tyres .

Maybe there could be if push came to shove, but are they interested

Sidewall repairs are iffy and good tyre outlets will keep to their code of practice and refuse to repair, it's where the reinforcing is to impact the loading from above and inhibit flexing, whereas the tread just wants to keep you on the road.

Had a good read and can't see that anyone has written that it is banned.

Hi there KG just to let you know that tyres that have a nail or screw in the shoulder of the tyre or a vertical cut in the sidewall can still be repaired with a process that we call a major repair which is done in and autoclave under heat and is a guaranteed repair.Avery good freind of mine owns a tyre repair company in Stone in Staffordshire and has been in business for 40yrs and their work is excellent.

Brian & Jo

You made out they were.

Also you are wrong about a tyre that's been temporary repaired with sealant.

My son tyre was simply flushed out with a hose pipe and repaired.

No I did not, xtrailman. Read it again. 

It seems some tyre depots will repair after sealant use, some won’t, so I was not totally incorrect.

Thankyou for your well considered input. 

The issue is that you have no way of knowing what damage was done to the sidewall or what damage may be done when drilling or cleaning the hole.

The rubber bit can be perfectly jointed at a molecular level, that is not in question. The issue is that the belts give the tyre strength not the rubber.

This is not as critical in the tread area as the majority of the force is always going to be in one direction but on the shoulder or wall the lateral forces on modern tyres is huge. Failure therefor is likely to occur during maximum lateral load, just when you really dont want it to.