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Home > News > Automotive

Evonik's low surface area silica enables high filler levels in tire treads

Source：Adsale Plastics Network Date ：2021-05-11 Editor ：JK

Evonik Industries has developed new, active filler for the tire industry that improves the traction of winter tires in snowy and slushy conditions, thereby increasing safety.

ULTRASIL 4000 GR is the first Low Surface Area (LSA) silica that also offers very good dispersibility. This enables high filler levels in the tire tread, further improving traction compared to tires using conventional silica.

“Unique to ULTRASIL 4000 GR is its product design that combines very good dispersibility and a low surface area, and this is what makes the high filler levels possible,” said Bernhard Schäfer, Senior Vice President Rubber Silica at Evonik. Despite its high filler quantity, this silica can easily be dispersed into the rubber compound.

ULTRASIL 4000 GR helps improve the traction of winter tires.

Not only in tire treads but also in sidewalls and non-tire applications such as mechanical rubber goods (MRG) or shoe soles, manufacturers benefit from the resource-saving processing and good product properties of the new member of the ULTRASIL family.

“After all, its excellent dispersibility is a significant advantage in processing here, too, particularly when using high filler levels,” emphasized Roland Krafczyk, Vice President Global Applied Technology Tire & Rubber.

Under the ULTRASIL brand, Evonik provides a wide range of fillers all over the world, which have various properties and particle sizes and are tailored to different applications. ULTRASIL 4000 GR will initially be produced in a new precipitated silica line at the Adapazarı site in northern Turkey.

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Source：Adsale Plastics Network Date ：2021-05-11 Editor ：JK

Evonik Industries has developed new, active filler for the tire industry that improves the traction of winter tires in snowy and slushy conditions, thereby increasing safety.

ULTRASIL 4000 GR helps improve the traction of winter tires.