Why are tyres black?

Why are all tyres black

Tyres do not get the colour black from design choices, but rather it is a functional by-product.

Reasoning

During the manufacturing process, a rubber compound is mixed with a substance called carbon black, which has some important benefits such as the following:

• Helps improve the tyre's durability and tensile strength
• Provides UV protection by shielding the rubber from sun damage
• Improves heat dissipation which helps regulate the temperature of the tyre while driving
• Improves the tyre's overall lifespan

If there was no addition of carbon black to rubber compounds, tyres would be a natural, off-white colour and would degrade far more rapidly when exposed to sunlight, as well as wear out significantly sooner.

The black colour of tyres is simply a functional by-product of the carbon black additive.