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Why are the tires of the car black in Color ? Why can't it be any other?


Natural rubber is off-white in color, and in fact the first rubber tires were white.. But the black color of tires comes from carbon black, a readily-available material that provides greatly improved wear characteristics and heat-dissipation capabilities when added to rubber compounds.

Pure vulcanized rubber is soft and wears out very quickly, however, and tends to heat up and deform under load. So you want to mix something in with the rubber that adds temperature stability and hardness -- originally this was typically zinc oxide which made the tires bright white in color. Around the time of World War I zinc oxide began to be replaced with carbon black, which had even better characteristics and was becoming more available as a byproduct of coal and oil production.


However, the main reason for black tyres on cars today, is the chemical compound ‘carbon black’. It is used as a stabilising chemical, which is combined with other polymers to create the tread compound of a tyre. Once added to the rubber, carbon black increases the strength and durability of the tyres, which is understandably seen as a desirable trait for tyre manufacturers and car drivers. One way carbon black expands the lifespan of tyres is by conducting heat away from parts of the tyre that tend to get particularly hot when driving, such as the tread and belt areas. Carbon maintains the quality of tyres by protecting them from UV light and ozone, which are known to deteriorate tyres.





An added bonus is that addition of carbon black increases the coefficient of friction with the road surface thus making it safer to drive. Having stronger, long lasting tyres means you will have a more reliable drive. Tyres could be considered the most important part of your vehicle as they affect almost every performance factor from handling and acceleration to braking and ride comfort.

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