Why is it that all vehicle tyres are black and not in other colours?Your own view.

Emisco3310: Why is it that all vehicle tyres are black and not in other colours?Your own view.

Would it make any difference if it was other color?

Eberex:

Would it make any difference if it was other color?

Thank you.

There are white walled tyresand also coloured tyres but I feel they are just a 'fashion statement'

Emisco3310: Why is it that all vehicle tyres are black and not in other colours?Your own view.

Sure, and there have been. Some municipalities have laws against them as the coloured streaks left on the road by spinning tires and hard braking get confused with other road markings, so, except for specialty use, there is no market for tire makers to make coloured tires. Besides, coloured tires are not as good as black tires.
Carbon black, for obscure reasons, something that Mr Goodyear discovered by accident, greatly improves wear resistance, and coincidentally, wet traction. It does not make the rubber harder or softer as such, but improves both wear and traction.
Coloured treads do not contain carbon black or they would be black, because the amount of carbon is substantial (over 25%).

Kumho makes coloured smoke tires, DOT-approved, for competition use only. There are multi-coloured motorcycle tires available for show bikes, again, not street use.

Emisco3310: Why is it that all vehicle tyres are black and not in other colours?Your own view.

Why are Tires Black?

Left alone, tires dry out, discolor and eventually crack and split. “Dry rot” is a multi-million dollar problem for RVers, trailer boaters and owners of classic cars that are parked for extended periods.

The major factor degrading tires and other synthetic and rubber products is ozone, an odorless gas which is part of the air we breath. When combined with ultraviolet light (the invisible part of sunlight) a reaction occurs that attacks the tire polymer.

To protect against ozone and UV damage, a stabilizer molecule called a “competitive absorber” is blended with the tire polymer. Competitive absorbers work by capturing and absorbing UV radiation and converting it to heat which is dissipated harmlessly. All tire manufacturers use the same competitive absorber, carbon black. This is why all tires are black...why tires are not available in designer colors.

These absorbers are sacrificial; they expend themselves in performing their function of changing UV to heat. As carbon black loses it’s ability to perform, it turns gray. This is one reason why black tires discolor as they age.

To protect from further ozone damage, tire manufacturers add a wax compound to their formulas. Tires flex when they are in motion, causing the wax molecules to migrate to the surface. This forms a protective barrier between the air (ozone and oxygen) and the tire polymer. In the tire trade this is called “blooming”.

When tires are parked for extended periods, blooming does not occur and ozone starts attacking the polymer. With UV light and ozone working in concert, the degradation is accelerated, resulting in drying, discoloration and cracking.

The best product we know of to retard ozone and UV damage is 303 Aerospace Protectant. A quick spray of 303 Protectant leaves tires looking great and protects them with the equivalent of an SPF 40 sunscreen.

Sourced from yahoo answers

If you remember your vulcanization in integrated science carbon is used to make rubber in tires better sulpir too is used. I think it is activated carbon can remember.

I mentioned activated carbon because it is commonly used in industrial manufacturing

Tyres are black because of what we call "CARBON BLACK". Carbon black is a by-product of Crude oil refining. In Nigeria, it is only in Warri Refinery it is produced.

The carbon does make the tires tougher as well as the traction... It very much makes them tougher, special recipes go so far to make aircraft tires that support tremendous loads and impacts.. The documentaries are out there to watch about the making of tires and what makes them so tough compared to the ordinary rubber ingredient they come from...

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https://www.youtube.com/watch?v=xN4Df41PPpc

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https://www.youtube.com/watch?v=hG_d7H5XuYs

Always tot about this

WHY ARE COAL TARS ALWAYS BLACK...cant we have a YELLOW COAL TAR....?