Why do tires have hair?

Anonim

What are tire hairs for? The truth is, they are useless. Even so, virtually all tires have these characteristic hairs on their casing. But if they are useless, why are they there?

manufacturing issues

These hairs result from the excess of rubber that runs out of the mold during manufacture, when the tire is subjected to high pressure to acquire its final shape. This mold has small holes that have the function of draining excess air and allowing the rubber to acquire the shape that appears in the mold.

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There are brands that choose to sell the tires still with this hair, other brands cut them. Today, the fur on the tires, in the generalized perception of consumers, is an inseparable characteristic of new tyres.

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Bridgestone chooses to “trim” the hairs on its tyres.

It's not just a matter of form.

It is not just to acquire the final shape that tire rubber − whether synthetic or natural − is subjected to high pressure. Tires are subjected to this treatment so that the rubber and the various components that make it up fuse together. This chemical process is called vulcanization. It is this process that gives rubber its elastic qualities.

We are always learning. We've already explained how to read all the information contained in a tire, and also that there are tires with specific specifications for your car, but there are other curiosities. Soon come back to this theme. After all, it is the only element of the car in contact with the asphalt.

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