2020 Integrated Report

Case studies

Fighting against climate change

Solef® PVDF (pictured)

Solef® PVDF, a high performance material for Li-on batteries, has been awarded the Efficient Solutions label by the Solar Impulse Foundation.

Solef® PVDF

for enabling lithium-ion electric vehicle (EV) batteries

E-Car charging (picture)


  • The transportation industry is looking for cleaner, safer and more energy efficient solutions to reduce CO2 emissions.
  • The move toward hybrid vehicles doubles Solvay’s polymer content.
  • By 2030, electric vehicles are expected to account for 30% of new cars, just in Europe.

Our solution

Improving performance and durability of EV batteries

A high-performance material for Li-ion batteries, our Solef® PVDF has been awarded the Efficient Solutions label by the Solar Impulse Foundation for its role in improving the performance and durability of electric vehicles. This polymer is used to manufacture battery components (binders and separators) that are used as a battery separator coating in electric vehicles. As a partially fluorinated material, it is particularly stable, which enhances the safety performance of the battery. It enables higher voltages and high-temperature resistance as well as faster charging.

Impact on Cleaner mobility


Sales in 2019

it can save up to

1.67Mt CO2*

emissions over a vehicle’s useful life

* Impact calculation and related CO2 savings based on an electricity decarbonized supply

SW Premium Range

for sustainable tires

Car tire (picture)


  • Growing concerns about sustainability and stringent regulations on CO2 are driving the automotive industry to develop cleaner, safer and more energy efficient solutions.

Our solution

Efficient tires that reduce a vehicle’s CO2 emissions

Our Silica SW Premium Range of products are used to create tires that reduce rolling resistance by up to 25%, helping lower fuel consumption by ~7%. They do this by making tire gum more consistent and preventing it from heating up. Our latest innovative grade Premium SW is among the most affordable and efficient ways to cut CO2 emissions from vehicles.

Impact on Cleaner mobility and Protecting natural resources




natural rubber savings in vehicle use phase

potential saving


CO2 emissions per year


for lighter, more fuel-efficient aircraft structures

Wing of a plane (picture)


  • In the aerospace market, there is high demand for advanced solutions to accelerate build rate at a lower cost and produce lighter, more fuel-efficient aircraft.
  • Using composite materials instead of aluminum can reduce maintenance hours by 44 to 65%.
  • It can also cut CO2 by 50% by 2050.

Our solution

Enabling cleaner aircraft mobility

Our composite technology offers an attractive value proposition for aircraft manufacturers: it reduces the weight of the aircraft, which increases the fuel efficiency and reduces emissions. Our Cycom® range of products offer solutions for the most technically challenging composite applications. This range of prepregs and resin systems are the industry standard for stiffness, impact resistance and thermal performance. In addition, Cycom® delivers 10 to 20 times faster manufacturing rates, thus enabling a lower total cost of ownership in line with industry expectations for high volume composite use.

Impact on Cleaner mobility



up to


fuel consumption

up to


CO2 emissions in use phase


for lighter, more durable aircraft engines

Turbine of a plane (picture)


  • Lightweighting is a key challenge for the aerospace industry as it allows fuel efficiency and CO2 emissions reduction.
  • Up to 50% composites by weight on wide-bodies.
  • <10 to 25% composites by weight on narrow-bodies.

Our solution

Halar® for the LEAP engine*

Solvay’s Halar® ECTFE, a high-performance polymer thermoplastic film, is used as a protective layer on the Leading Edge Aviation Propulsion (LEAP) engine acoustic ring panel that protects against the harsh environment typical at the entrance of an aircraft engine. It is strong and tough and its resistance to erosion, abrasion, and aircraft chemicals and fluids make it ideal for this application. Halar® was used as the lightweight, flexible, topcoat for the photovoltaic cells on the Solar Impulse aircraft.

Impact on Cleaner mobility


reduction of CO2 emssions possible compared to traditional engines

* The LEAP engine is a product of CFM International, a 50/50 joint company between GE and Safran Aircraft Engines.


for more energy-efficient cars

Car chassis (picture)


  • The automotive industry’s priority is the need for light materials (for body, chassis, interior, powertrain and under-the-hood application) to increase energy efficiency.
  • Lightweighting that does not compromise vehicle safety or comfort is now the main lever for solving this automotive industry challenge.

Our solution

A unique solution to improve adhesive performance in the automotive industry

Aluminium cannot be welded, so bonding must be used for automotive applications, but this can reduce the material’s strength. Solvay’s AddibondTM 275 provides a solution. Adding it to the surface prior to bonding improves adhesive strength and enhances durability over time, especially in severe conditions. AddibondTM’s benefit to customers is also in the improvement of Health, Safety and Environment (HSE) management for their clients: it allows for a process that is free of chrome and heavy metal and results in minimal process waste, saving water and lowering temperature requirements.

Impact on Cleaner mobility and Better life (safety)

4g of Addibond™ can translate to savings of


in CO2 emissions per car annually


to help alumina refineries reduce their environmental impact

Aluminium rolls (picture)


  • Alumina is the primary raw material for aluminum.
  • High consumption of water and energy needed to descale alumina manufacturing equipment.
  • Hazardous de-scaling operation needed in addition.

Our solution

Helping alumina refineries reduce energy, water consumption and costs

MAX HT® eliminates scale directly at the source, which reduces energy, fresh water consumption and related costs for alumina production. It also increases the safety of refinery workers who, in many cases, are no longer exposed to hazards associated with acid cleaning. MAX HT® is labelled as an Efficient Solution by the Solar Impulse Foundation for preventing the formation of impurities and contaminants in heaters, resulting in optimized energy consumption and reduced emissions.

Impact* for Cleaner mobility, Protecting resources and Better life



Reduce CO2 emissions equivalent


per ton of alumina produced


of gallons of fresh water are saved annually

Reduce acid waste


Average net savings per ton of Alumina ranges from


Reduce exposure of refinery workers

* Impact varies depending on various refinery conditions