Anti-yellowing strategies for preventing discoloration in molded polyurethane shoe parts

anti-yellowing strategies for preventing discoloration in molded polyurethane shoe parts 🧠 introduction: the golden glow that isn’t so golden polyurethane (pu) has long been a darling of the footwear industry, celebrated for its versatility, durability, and comfort. from sleek soles to cushiony midsoles, molded polyurethane parts are ubiquitous in modern shoe design. but even this wonder material isn’t immune to aging—particularly when it comes to discoloration.…