ULTRASIL® 4000 GR for winter tires.

For safe and sustainable tires

The silica experts at Evonik have developed the first highly dispersible (HD) silica with low surface area for the tire industry, providing this industry sector with multiple benefits.

The combination is truly unique: ULTRASIL® 4000 GR is a low surface area silica with high dispersibility. These properties make it easy to integrate higher filler quantities into the tire tread, as ULTRASIL® 4000 GR can easily be added to the rubber mixture. It is possible to create compact rubber compounds with good sheet appearance even after short mixing processes.

ULTRASIL® 4000 GR allows tire manufacturers to create winter tires with significantly better traction on ice and snow than when using conventional silica. As well as improving driving characteristics and safety, the new filler also contributes to sustainability: When used in the tread of green tires, the product helps reduce rolling resistance, which in turn lowers fuel consumption.

With ULTRASIL® 4000 GR, manufacturers also benefit from the significantly easier processing of low surface area HD silica when working with higher filler levels and its excellent product characteristics in tire sidewalls and non-tire applications, such as mechanical rubber goods (MRG) or shoe soles.

For tires with a better grip on mud and snow: Evonik launches highly dispersible low surface area silica

  • ULTRASIL® 4000 GR is the first low surface area silica with very good dispersibility
  • Innovative product design enables very high filler levels and optimized rubber sheet appearance
  • Improved traction in snowy, slushy, and wet conditions

PRODUCT Information