Video Exclusives

Conti's tuning department celebrates 25th anniversary


Learn how Conti engineers develop and refine tires for a range of vehicle conversion partners

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Cutting-edge retreading technology


Watch Marangoni's RingBuilder Saturn system in action. The new machine adopts the company's cold retreading technology, Ringtread, which utilizes splice-less precured tread rings

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Are some tire makers too focused on the aesthetics of their tread patterns at the expense of performance and safety?


Micronized rubber powder technology

Lehigh Technologies, a green materials company, has announced its latest micronized rubber powder (MRP) technology. PolyDyne-HL10 is the latest evolution of the micron-scale powder that eventually becomes tire rubber.

Using a cryogenic manufacturing process, traditional ‘crumb rubber’ is upcycled to produce a purer, contaminate free powder that is around 50 microns in size, as opposed to crumb rubber’s 400 microns size.

The latest evolution of this process, HL10, is unique because of its higher loading of MRP to 10%, giving manufacturers a higher performing rubber, whilst delivering cost savings of up to 5%.

The technology is a combination of unique particle size distribution, surface area and formulation optimization, and as can be seen from the accompanying graph how formulating PolyDyne-HL10 into two different recipes improves fatigue life, especially important for demanding applications. PolyDyne-HL10 technology was developed by the materials and rubber compound experts in Lehigh’s Application & Development Center.

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