Solvay’s Zeosil® highly dispersible silica reinforces rubber goods such as tires. This range offers a wide variety of highly dispersible silicas, including the well-known dust-free Micropearl form.

To comply with international regulations (like Tire Labelling), tire manufacturers have to lower rolling resistance, the main means of reducing energy consumed by tires and, therefore, vehicle fuel consumption & CO2 emissions. 

As a key supplier to automotive industry, Solvay proposes Zeosil® silica as an answer to the sustainable mobility challenge. Solvay’s high performance silica range is the best way to lower tire rolling resistance while improving tire performances.

The Zeosil® range was instrumental in the development of energy-efficient tires (Green tires). By reducing the rolling resistance of tires by 25%, Zeosil® technology reduces vehicle fuel consumption and CO2 emissions by as much as 7% without impairing tire performance.

Zeosil® Premium is the first generation of high surface silicas combining superior dispersibility, excellent reinforcement and low hysteretic properties.

The Zeosil® range also brings innovative solutions to applications such as battery separators and rubber manufactured goods.

The silica benchmark for green tires

Zeosil® Premium is the first generation of high surface silicas for tires which combines superior dispersibility, excellent reinforcement and low hysteretic properties.

Zeosil® Premium is one of Solvay's latest innovations for the tire industry: this new generation of high surface silica offers up to 25% less rolling resistance and 7% less fuel consumption and CO2 emissions. 

Zeosil® Premium silica in tires: Less resistance, more performance

Recent European regulations are challenging automotive and tire manufacturers to limit rolling resistance in order to reduce fuel consumption & CO2 emissions. As a key supplier to automotive industry, Solvay developed Zeosil® Premium to open new perspectives for sustainable mobility by improving at the same time environmental performance of tires; consumer safety and manufacturer productivity through improved processability. Zeosil® Premium silica is your passport for the "AA" tire, the highest grade in the new European Tire Labelling regulation.

Zeosil® Premium technology is based on the association of a specific high surface-area and a new morphology, a unique combination of the silica aggregate and the element particles of which it is composed.

This technology makes Zeosil® Premium a breakthrough product that is unique in the market.

The unique structure of this High Performance silica enables very good dispersibility for such a high surface improving the mixing of silica into rubber and enhancing productivity for the manufacturer. In addition, it provides exceptional tread reinforcement for increased tire durability.


Less resistance, more safety, more applications

Zeosil® 1085GR is the only very low surface area Highly Dispersible Silica (HDS) available on the market that suits tire industry needs.

Winter tires

Zeosil® 1085GR offers great improvements in ice, snow and wet traction together with reduced rolling resistance.
Using this innovative silica improves safety of drivers in difficult driving conditions while enabling tire manufacturers to be in conformity with the European labelling program.


Non-tread applications

Zeosil® 1085GR can also be used in other parts of the tire like sidewalls or bead.

This silica reduces the compound hysteresis and the heat build-up while maintaining stiffness and diminishing fatigue failure. It is the solution of choice for further reducing of rolling resistance of all tires without affecting tire lifetime.



The very low surface area silica developed by Solvay makes this Highly Dispersible Silica the easiest to process.

This technology offers many possibilities to enlarge silica usage in difficult processing conditions (high silica loading, high viscosity matrixes...).

Already implemented in Korea and Japan, tire labelling regulations are challenging the automotive industry to reduce CO2 emissions of vehicles and increase road safety all around the globe. 
This regulation implemented in Europe since November 2012, imposes a standard label for passenger car, van and truck tires. This new regulation helps end-consumers to make more informed choices when buying tires. 
Each tire must be physically labelled so as to provide information on environmental impact, safety and comfort characteristics with the aim of reducing CO2 emissions and increasing road safety: 

  • Fuel efficiency: Cars with a complete set of “A” grade tires consume up to 7.5% less fuel compared to “G” grade tires. That equals up to 0,45L of fuel savings every 100km for a car consuming 6,6L per 100km.
  • Wet grip: Under wet road conditions cars with a complete set of “A” grade tires can make a full break with 30% shorter braking distance than “G” grade tires (e.g. for a typical passenger car driving at 80km/h speed: up to 18m shorter braking distance).
  • Tire external rolling noise: Vehicles will have a mandatory decibel limit starting in 2016. The value in decibel and a pictogram indicates whether the tire is above the future European mandatory limit (3 filled bars) between the future limit and 3dB below (2 filled bars) or more than 3dB below the future limit (1 filled bar).


Zeosil® and Zeosil® Premium for better grades

Solvay Highly Dispersible Silica (HDS) enables better energy efficiency. Zeosil® silica range contributes to escape the F and G class, reducing by 5% fuel consumption and CO2 emissions.

Replacing carbon black in tire tread, Zeosil® Premium silica reduces fuel consumption and CO2 emissions by up to 7.5% while reducing breaking distance on wet surfaces. This new technology gives the opportunity to achieve the “A-A” and “B” grade challenge.


Zeosil® silica for better handling and longer treads life

When purchasing tires, consumers consider other characteristics besides tire environmental and safety performance. Other influential factors include durability, road handling and winter performance. 

Solvay has developed its entire silica range to enhance performance in each of these areas. The excellent dispersibility of Zeosil® Premium provides tire users with better handling characteristics and longer treads life. Zeosil 1085GR is Solvay’s silica specially designed for winter tire, increasing wet and snow grip.