Michelin has shown the future of tires - they will run out of air and will not be punctured

Air-filled tires offer the advantage of driving comfort, but at the same time suffer from the disadvantage of being relatively easy to puncture. For many years, manufacturers have been trying to find a solution that would eliminate this vulnerability – they tried, for example, sealing compound, various inserts or airless technology.

However, none of the solutions mentioned above have worked yet did not take hold on a mass scale, as each had certain disadvantages. One of the most successful technologies today is “run-flat”. These are tires with reinforced sidewalls and reinforcements in the tread area that can support the weight of the vehicle. With a damaged tire of this type, it is possible to drive at a maximum speed of 80 km/h for a distance of up to 80 kilometers.

A new solution against defects

Bridgestone and Dow now present a new solution SiLASTICâ„¢ SST-2650 Self-sealing Silicone, which can be easily integrated during the tire manufacturing process. Ultimately, it delivers greener and lighter puncture-resistant tires.

According to a press release, Dow is preparing to revolutionize tire sealing with of a new silicone material called SiLASTIC SST-2650 Self-sealing Silicone. The sealant is a two-component silicone-based mixture that is applied to the inside of the tire during production. Dow is now working with Bridgestone to implement this technology into B-SEALS tires.

The sealant is basically a layer of durable, very flexible silicone applied to the inside of the tire. When a car wheel hits a nail that pierces the tread, the silicone on the inside of the tire surrounds the object that penetrated it.

Silicone rescue

After removing the foreign object the silicone simply fills the resulting hole, which will keep the pressure in the tire and allow for later repair. Dow claims that the properties of the material allow it to return to its original shape and fill the nail hole regardless of whether it was removed immediately or after a considerable delay.

Although the company advertises this technology as fast curing, the data sheet states that the curing time is up to seven days, which will fundamentally affect the production time of tires using this technology. The U.S. Tire Manufacturers Association says the average passenger car tire will harden in 12 to 15 minutes. The extended curing time means Bridgestone will have to adjust its manufacturing processes.

According to Bridgeston, one of the key advantages that sets this solution apart from traditional tire sealant gels or fluids is that possibility to easily remove the silicone component of the tire. Thanks to this, its later recycling is significantly facilitated. “Dow meets the demands of self-sealing tire manufacturers for high performance and sustainability while providing drivers and passengers with a lighter, safer and more durable solution.”

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