By Sharad Matade

As part of its sustainability efforts, Continental aims at using at least ten percent of natural rubber derived from Russian dandelion roots in its tyre and industrial rubber goods production in future.

“We have undertaken a huge research task to meet ten percent of our requirement of natural rubber from dandelion roots. It is a long-term process,” Dr Carla Recker, Head of Expertfield Materials Chemistry & Taraxagum, told Tyre Trends in an interview. “It will take decades to complement natural rubber from Hevea brasiliensis with natural rubber from dandelion plants at an industrialised level. However, the company does not intend to replace NR from Hevea brasiliensis trees.”

According to Dr Carsten Venz, Site Manager at Taraxagum Lab Anklam, “Dandelion will be an additional source of natural rubber, not a replacement to rubber trees, in the coming years.”

Continental has been consequent on the cultivation and processing of Russian dandelion as an alternative source of raw material to the rubber tree in the tropics. Last year, the company officially opened its research and test laboratory named Taraxagum Lab Anklam in Anklam, Germany, a base for its future research into the cultivation and processing of Russian dandelion, within a year after the ground-breaking ceremony held in November 2017.

“The Taraxagum Lab Anklam is the latest key milestone of our project,” said Dr Recker.

The Taraxagum project is crucial for the company. “The natural rubber from dandelion is important to develop a new alternative and sustainable supply of the raw material” Dr Venz said.

On bicycle tyres

Though the lab was opened last year, Continental started working on the dandelion rubber project in 2011, and the company has already used rubber from dandelion roots in its passenger car tyres, truck tyres and industrial rubber goods. “The latest development on production-side is that we have industrialised bicycle tyres with rubber derived from dandelions. So, you can now buy bicycle tyres of Continental made of dandelion rubber in the market,” Dr Recker said. Continental showcased its first bicycle tyre with dandelion rubber at the Tour de France this year.

Currently, the Taraxagum lab is working on dandelion research, and over the next five to ten years, it will focus on the industrialisation of dandelion rubber and increase the share for the dandelion rubber in its products.

“Continental sees the Russian dandelion as one element of our commitment for sustainable natural rubber as detailed in our Sustainable Natural Rubber Sourcing Policy published in October 2018. At least for us, the Russian dandelion is the most promising alternative source for natural rubber. There might be different sources (to get natural rubber), but that does not fit for us. The Russian dandelion can be grown in different climate zones unlike natural rubber from heave brasiliensis trees which need tropical climates to grow. Rubber trees and the Russian dandelion have the same characteristics, the same chemical structure and the same properties. It is just two plants producing the same material,” says Dr Recker. The advantage of dandelion rubber over rubber from trees is that the former has a generation succession of just three months as compared to seven years for the latter.

Since the dandelion plants can be cultivated in Northern and Western Europe, which makes transportation routes to the European production sites much shorter and contributes to the sustainable use of existing resources, thinks Continental.

However, the major challenge will be the 100 percent replacement of rubber made from trees with dandelion rubber. Dr Recker thinks, yes, technically, dandelion can replace tree rubber by 100 percent, but the more significant challenge will be the industrialisation of dandelion rubber to the level of rubber trees. “We are at a research stage. The amount of dandelion available globally is not enough to replace natural rubber commercially. To create that biological system to industrialise the natural rubber from the dandelion will take some time and we will have to be more patient,” says Dr Recker.

Research is a time and capital consuming task. Synthetic rubber is also coming into tyre production in a more significant way, but the crude oil derived commodity has historically been volatile, and even oil-producing nations are diversifying their businesses citing falling productions and growing focus on cleaner options.

Dandelion rubber is not new to the tyre industry; however, the industry does not seem much keen on dandelion plants as an alternative source for natural rubber. “Not everybody (tyre company) is willing to invest in the early research of dandelion rubber and setting up the entire bio-economy. You have to establish a full value chain from breeding to the production of natural rubber from dandelion plants, which is does not exist yet and not every market player is willing to invest in such a long-term process,” explains Dr Recker.

Since Continental sees dandelion a sustaining resource for natural rubber in the future, it has made a substantial investment for the project. It has already poured in 35 million euros for the project. “Though many of our peers are investing in other resources to get natural rubber, I think we are quite unique investing like the way we are to explore alternative resources for natural rubber,” says Dr Venz.

Over 90 percent of natural rubber derives from South East Asia, a tropical region suitable for natural rubber trees. However, erratic climate behaviour is hitting production of natural rubber in this region. Natural rubber producers are also exploring other areas to grow natural rubber trees. According to Dr Recker, the research project has yet to ascertain the survival scope of the Russian dandelion in changing climates. “I believe that Dandelion will grow in all climate zones,” says Dr Recker.

Yield ratio

As of now, Continental also does not have comparable yield ratios between natural rubber from dandelion and hevea brasiliensis. “We are working on determining the output of natural rubber per acre from both resources,” says Dr Venz. “Usually, between 1 and 1.8 ton per hectare per year is produced from rubber trees, and around the same amount of production per hectare we are expecting from dandelion plants,” estimates Dr Recker.

As part of the value chain creation, the company is focusing on breeding for seed production and harvesting, root production and harvesting, and the extraction process. According to the company, growers also need some time to understand and get hands-on to harvest dandelion plants. Every year climate conditions will determine a different impact on the plants. “We will need to see how the crops will react in different climate and harvesting seasons. We are building a network of farmers in North East Germany from whom we learn and whom we can teach what we have learned,” added Dr Recker.

Fundamental design and development of tires for the mobility of the future will be unchanged; however, tires will be expected to be high performance and eco-friendly. According to Continental executives, for the mobility of the future, natural rubber will remain the core ingredient and dandelion will be one of the sustainable options to provide natural rubber. “Rubber be will be used in future to make high-performance tires, and we are exploring the option to have a sustainable source for natural rubber,” adds Dr Recker.

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Continental has transformed its European Roadshow into a long-term customer engagement platform, scheduled to traverse the continent through 2027. The initiative delivers the company’s newest commercial vehicle tyre technologies, trailer solutions and digital services directly to fleet operators. Following successful kick-off events in the Czech Republic and Denmark, the mobile tour is set to visit Norway and Finland, with further destinations to be announced.

This expanded programme underscores Continental’s strategic commitment to deepening customer ties through direct interaction. The initiative directly addresses critical fleet management concerns, including total cost of ownership, operational efficiency and the ongoing digitalisation of transport logistics. The company aims to position itself as a partner in solving real-world operational challenges.

Central to the roadshow is the Showtruck, a mobile consultation and demonstration hub that allows fleets to experience Continental’s portfolio within their local markets. Attendees navigate themed stations that link product innovations to practical fleet applications and everyday operational hurdles. A primary focus is the Generation 5 tyre portfolio, engineered for enhanced mileage, reduced rolling resistance and superior durability, alongside trailer tyre options and a preview of the upcoming Conti Efficient Pro HT 5.

The roadshow also highlights ContiConnect, a digital tyre monitoring system that supplies real-time data and actionable intelligence to support predictive maintenance and increase operational transparency. Traveling thousands of kilometres across Europe through 2027, the platform engages fleet operators, logistics firms, dealers and industry partners. By merging products, digital services and technical expertise, Continental reinforces its dedication to efficient, digitally connected transport solutions, with additional tour dates to be revealed.

Ivonne Bierwirth, Head of Marketing Communications – EMEA, Continental, said, "Fleet operators are under increasing pressure to improve efficiency, control operating costs and meet evolving industry requirements. The Roadshow allows us to engage directly with customers and demonstrate how our tyre technologies, digital solutions and expertise can help them address these challenges in their daily operations."

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Tyres Europe and the Association of Synthetic Amorphous Silica Producers (ASASP) have released a joint position paper on synthetic amorphous silica (SAS) in tyre manufacturing. The document highlights SAS as a critical component that improves wet grip, reduces rolling resistance and supports durability, thereby enhancing vehicle safety, fuel efficiency, electric vehicle range and lowering use-phase emissions.

A proposed harmonised classification for SAS is under consideration. Though not an outright ban, the industry warns it would likely compel manufacturers to phase out SAS during design rather than manage exposure, effectively bypassing practical risk controls.

Tyres Europe and ASASP urge regulators to base any action on robust evaluation of SAS properties, exposure conditions, established industrial uses and broader socio-economic impacts on European value chains. Policy measures must reflect these factors to avoid unintended disruptions.

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Tegeta Green Planet participated in the recent Social Design Days conference, a three-day event hosted by the Design Institute that centred on circular design and sustainable innovation. The gathering brought together diverse professionals to explore the intersection of creative disciplines and environmental responsibility.

During the proceedings, Tegeta Green Planet Director Shalva Akhvlediani engaged in a panel discussion that examined Georgia’s trajectory in building a circular economy. The conversation addressed the nation’s current obstacles and prospective avenues for growth, with a particular focus on systemic shifts in resource management and regulatory frameworks.

Akhvlediani pointed to measurable advancements in Georgia’s waste management infrastructure, the adoption of Extended Producer Responsibility standards and a growing national recycling ethos. These developments, he observed, are creating a robust base for more judicious resource utilisation and fostering habits of conscientious consumption. The panel further acknowledged that resourcefulness is deeply rooted in Georgian heritage, where mending, reusing and bequeathing goods were traditional practices, though modern consumerism has eroded these customs, necessitating a blend of age-old wisdom with contemporary circular strategies.

A critical takeaway from the discussion was the assertion that technological fixes and legislation alone are insufficient. Genuine progress, Akhvlediani argued, hinges on synergistic cooperation between designers, architects, researchers and creatives to engineer products and systems that prioritise longevity and recyclability from inception. Social Design Days proved instrumental in facilitating cross-sectoral dialogue, promoting circular principles and inspiring actionable solutions for national sustainability. Tegeta Green Planet reaffirmed its dedication to advancing these environmental objectives and supporting collaborative platforms that drive meaningful change.

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Continental is set to construct its first company-owned wind farm adjacent to its tyre production facility in Korbach, within the municipality of Twistetal, Hesse. The initiative will supply electricity directly to the plant, situated roughly eight kilometres away, thereby diversifying the manufacturer's energy portfolio. This strategic move aims to accelerate renewable power adoption, enhance cost competitiveness and diminish reliance on volatile energy markets.

The project features three turbines that, alongside existing solar systems, are projected to satisfy approximately two-thirds of the Korbach plant's electricity requirements. With an annual generating capacity of around 55 gigawatt-hours, the turbines could supply roughly 15,000 average households. Continental has allocated a mid-double-digit million-euro investment, having secured all necessary permits. Groundbreaking is anticipated in 2026, with commissioning expected about 18 months later.

Tyre production consumes significant power for operations like mixing raw rubber and extruding components. The Twistetal wind farm will enable the Korbach plant to meet a larger proportion of demand with locally sourced renewable energy fed directly into manufacturing. This addition complements existing infrastructure while maintaining reliable operations during fluctuating wind or solar conditions. The Korbach facility, employing approximately 2,400 people, produces tyres for passenger cars, motorcycles, bicycles and industrial uses.

Photovoltaic systems at Continental’s Korbach tyre plant.

The selected Nordex N175/6.X turbines have a hub height of 179 metres and a rotor diameter of 175 metres, reaching a total height of 267 metres, making them among the most powerful onshore turbines available.

The Korbach project represents a key step in Continental's broader strategy to expand proprietary energy generation, with similar initiatives considered globally. The goal is a flexible, economically viable energy supply while increasing renewable power proportion, ideally produced near each manufacturing site.

Continental is evaluating feasibility at worldwide plants, considering local conditions, regulations, storage, integration with existing sources and financial viability. Since 2020, the firm has covered global purchased electricity demand with renewables and reduced tyre production greenhouse gas emissions by approximately 180,000 metric tonnes over four years. By early 2026, coal and heavy fuel oil were eliminated at all production sites, replaced by electricity from renewables, biomass, biogas, LPG and natural gas for steam and heating.

Dr Bernhard Trilken, Head of Manufacturing & Logistics in Continental’s Tires group sector, said, “Having our own wind turbines near the plant will give us more predictable energy costs and reduce our exposure to volatile energy markets – key factors for competitive tyre production in Germany. This is fully aligned with our global strategy to expand our own renewable energy generation and will serve as a blueprint for other sites worldwide.”

Klaus Ohlwein, head of the Continental tyre plant in Korbach, said, “The wind farm will bring major benefits to our location. It will help us cover a significant share of our electricity needs in Korbach with our own renewable sources at competitive and more predictable costs. The electricity generated will be used directly in tyre production, including in mixers and extruders. The project is an important step in our sustainability activities at the site and demonstrates how industrial competitiveness and sustainable energy use can be effectively combined in Germany.”

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