The chemistry of the 2026 World Cup ball

Infographic titled "The chemistry of the World Cup ball" by Compound Interest. It details the materials used in manufacturing. Polyurethane coating forms the water-resistant outer panels, synthesized from isocyanate and polyol. A nylon lining (polyamide) adds bounce and strength between the cover and bladder. The inner butyl rubber bladder retains air effectively, though latex is an alternative.
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The 2026 World Cup is up and running, but not without its share of controversy. It’s setting a number of unwelcome firsts: the first time a World Cup referee has been barred from a host nation, and the first time a host nation is at war with one of the participating countries. However, some slightly more welcome firsts come in the shape of the materials science behind the World Cup ball, the Trionda.

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