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How a German Factory Uses CO2 to Make Carbon-Negative Foam
Episode 56 of The Manufacturing Podcast visits a factory in Bavaria where a startup called CarbonFroth is capturing carbon dioxide from a nearby cement plant and turning it into polyurethane foam. Lucas walks through the chemistry: instead of using fossil-fuel-derived isocyanates, they react CO2 with epoxides to make polycarbonate polyols. The result is a foam that sequesters about two kilograms of CO2 per cubic meter — making it carbon-negative. Luna pushes back on scalability: the process currently costs 30 percent more than conventional foam. But Lucas notes that automotive giants like BMW…
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