Question: Are car puncture repairs safe?

A repair, even by an expert, will still considerably weaken the tyres structure and be unsafe for the highway. The maximum diameter of a penetration hole left by a puncturing object is 6mm. However, if your tyre is split or cut a repair is unlikely to meet the above safety criteria.

How long can you drive on a puncture repair?

A tyre thats been repaired with sealant will almost always need replacing, however small the puncture was. Theres likely to be a restriction on how fast and how far you can drive on the repaired tyre. This should be in the instructions but if in doubt, stick to a maximum of 50mph for 50 miles.

How long do tyre repair kits last?

Typically, tyre foam or sealant will last between 50 - 100 miles before it starts to become ineffective. Its essential that you get your tyre fixed or replaced properly as soon as possible – ideally, on the same day.

How can you tell if a tire is slow leaking?

0:464:37How To Find A Really Slow Leak On a Car Tire ! And Fix It!!! - YouTubeYouTube

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