This article addresses the challenges of using recycled polymers as raw materials and explains why advanced approaches are needed to ensure consistent performance. Recyclates often vary widely in molecular weight and density and may contain contaminants such as mixed polymers, dyes, aluminum foil, additives, or fillers from different source materials and grades. Even well-sorted recyclates can show significant variability that affects mechanical and functional properties. At the same time, customers demand strict quality standards and consistent performance from recycled compounds. The piece highlights the need for smarter, data-driven methods to manage material variability and meet customer requirements while advancing recycling solutions.

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