Why are there hairs on tires

Riders have divided opinions on their importance. Some say that you must take them off; others think that your tire will be deficient if you do, so what purpose do they serve exactly?

Before knowing precisely what vent spews are, you must be familiar with tire manufacturing first and how the process of making a tire will result in rubber hairs. You can visualize a green tire as a smooth tire. It has no nooks and crannies nor flange flared edges yet. It is then transferred into a mold, built like a clamshell from the inside but with the tire pattern designed by the manufacturer.

This process is called curing or vulcanization. Ever noticed that your new car tyre always has little rubber hairs on it? They are simply a by-product of the tyre manufacturing process. Their technical name is vent spews but they can also be referred to as sprue nubs, tyre nibs, gate marks or nippers. The rubber hairs are created during the manufacturing process. To make a tyre, rubber is injected into a tyre mould and air pressure is used to spread the liquid rubber into all the nooks and crannies.

During the application of heat and air, there is a risk of air bubbles forming between the rubber and the mould. To ensure the rubber completely fills the mould, air needs to escape from small pockets. Small vent holes in the tyre mould allows this to happen, forcing the rubber into every orifice. When this happens, tiny bits of rubber also make their way out of the vent hole. Please consider allowing Autoblog. Allow Us! Here's how to disable adblocking on our site.

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