Self Healing Tires that Say No to Punctures is the Next Best  Thing in the Auto Arena

November 11, 2015, By Sanjeev Ramachandran

It’s autonomous with everything these days in automobile industry. Autonomous vehicles, auto-climatic control, auto-parking, auto-wipers –  vendors have fetched the industry to such a stage where they can invite even a guy unexposed to driving to take control of a car through long rides.

Regardless of what they do, the vehicle can take care of its own for almost anything, except for one thing – repair.


Unfortunately, none of these auto-terms can be applied when bumping into a fault within these machines. Sure, they can point out where the trouble is, but the rest?

It’s all manual then. But thanks to Sumitomo Rubber Industries Ltd, a Japanese company, we are having the auto-repair factor brought into one part of our rides – wheels.

The company has just recently unveiled their new prototype tire, called Coreseal, which they claim can tackle all puncture issues by itself. No deflation, no tire bursts; just grab the wheels and drive your way without any puncture worries.

The technology used here is simple. There are no sensors or series of tech-gadgets used to detect the puncture. Instead, the company does the entire trick by applying a sealant of 3mm thickness to the inside face of the tire.


In the event of a nail bumping in, the sealant would start adhering to the nail to prevent any kind of sudden pressure loss.

The adherent does its job even when the nail is removed by filling the void space completely. The company however admits there can be slight pressure drop in such instances, which would affect your rides the least. The prototype used is also able to heal puncture holes of up to 5 mm diameter.

The benefit with the developed adherent is that it’s not tire-specific. Although coming clasped with the prototype, Sumitomo explains that the sealant can be applied on all tires.

The company also says that they are aiming to kick off mass production of the new technology in next two-three years.

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