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Case study

Sustainable sports flooring based on cardyon®

More and more public authorities and sports clubs strive for ecologically more sensible alternatives to conventional products when it comes to sports fields. Our customer Polytan can offer a sustainable solution. Cardyon® closed the gap and now helps Polytan to differentiate themselves even more from the competition.
Task

Provide a sustainable binder to international standards

New sports fields made of artificial turf often contain an elastic underfloor consisting of recycled styrene-butadiene rubber (SBR) granules. But this elastic layer is usually formed using a fossil-based binder, a situation that our customer Polytan wanted to improve. They set themselves the task of creating a new more sustainable binder with improved quality, meeting all the requirements imposed by national and international standards/norms and fulfilling the requirements of international sports-federations (e.g. FIH, FIFA, WR). 

Challenge

Ensure that the binder is both more sustainable and offers improved quality

Polytan already offered a more sustainable solution for sports fields: artificial turf made of polyethylene derived from sugar cane, elastic underfloor consisting of recycled SBR granules – but the system was only available with a fossil-based binder. The challenge was to invent a binder that was more sustainable as well as effective and durable. 

Solution

Cardyon® provides a key raw material base needed for a more sustainable binder

The use of CO2 as a raw material for plastics is made possible by an innovative technology that Covestro has developed together with its partners. CO2 is used as a supplier of the important element carbon – instead of petroleum-based raw materials. Up to 20 percent of traditional fossil raw materials can thus be replaced by carbon dioxide. This new CO2 -based polyol enabled Polytan to offer more sustainable products to its customers. The first successful installation was at the hockey club, CHTC Krefeld, in Germany, which serves as a venue for international matches and championships. 

Why cardyon® was the right solution for Polytex

  • More sustainable: Replaces up to 20% of fossil feedstock with CO₂.
  • Compliant: Meets the United Nations’ Global Sustainable Development Goals.
  • Improved quality: Complies to certificates from international sports associations.

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