Huntsman and Steitz Secura launch circular PU mids - footwearbiz: Lead

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Huntsman and Steitz Secura launch circular PU midsoles

04/11/2025
Huntsman and Steitz Secura launch circular PU midsoles
US chemicals supplier Huntsman has partnered with safety shoe manufacturer Steitz Secura to create a polyurethane (PU) midsole system designed to increase the circularity in safety footwear.

The Daltoped system allows recycled PU scrap to be reused in new midsoles without changing existing processes or affecting performance. Industrial-scale trials confirmed durability, comfort and safety remain on par with virgin materials.

Wolfgang Burkhard, head of PUR at Steitz Secura, said the company now produces midsoles with up to 30% recycled PU. Alex Stepuk, business development circularity manager at Huntsman, added that the approach offers a scalable way to recover and repurpose PU, supporting demand for sustainable, high-performance footwear.

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Huntsman teases new soling range 15/08/2024
Ten TPU products from Huntsman earn Bluesign approval 04/07/2024

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