How do run/flat tires work?

Question

How do run/flat tires work?

Answer 1

These tires contain an extra lining within the tire that self-seals when something like a small hole punctures it, such as a nail or s***w. In this way, the loss of air is prevented from the outset so that the tire is either permanently self-repairing or at least loses air very slowly.

There are also a number of retro-fitted tire sealants which act in a similar way to self-sealing tires. These compounds are normally injected through the tire valve. The rotating force then distributes the compound onto the inner surface of the tire to act as a self-sealing lining within the tire.

Answer 2

A run-flat tire improves on standard tires by adding a special supporting sidewall structure that allows the tire to make it to the nearest service station completely devoid of any air pressure.

Answer 3

There is no self sealing glue in them, they run flat for a short period because of the reinforced sidewall and strengthened tyre design.