Why does optical brightener turn yellow on TPE material?

Having spent over a decade in polymer processing and formulation — tinkering with everything from medical-grade TPE to highly engineered automotive elastomers — I’ve encountered countless cases where customers come to me, baffled by why their supposedly “brightened” TPE ends up with an unsightly yellow hue over time. At first glance, it seems ironic. You […]

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What Is Thermoplastic Elastomer TPE Overmolding Like?

Having spent nearly two decades in the materials and manufacturing industry, I’ve had the chance to work with a wide range of polymers, from rigid plastics to stretchy elastomers. One process that’s always fascinated me is TPE overmolding, a technique that combines the soft, flexible qualities of Thermoplastic Elastomer (TPE) with a rigid substrate to

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What Are the Components of TPE Elastomer Pellets?

Having worked in the plastics and elastomer industry for over a decade, I’ve handled countless batches of thermoplastic elastomer (TPE) pellets, tweaking formulations and troubleshooting production lines. TPEs are versatile materials, prized for their rubber-like flexibility and plastic-like processability, but their magic lies in their carefully crafted recipes. If you’ve ever wondered what goes into

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Why Does TPE Overmolding Performance Deteriorate at Higher Temperatures?

As someone who’s spent years working with thermoplastic elastomers (TPEs) in the manufacturing world, I’ve seen firsthand how temperature can make or break the success of an overmolding project. TPEs are fantastic for creating soft, durable, and flexible components, but when the temperature rises, things can go south fast. If you’ve ever noticed your TPE

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Why TPR Overmolding on PP Results in Water Vapor Issues

As someone who’s been in the plastics industry for over fifteen years, I’ve tackled countless challenges in overmolding processes, particularly with TPR (thermoplastic rubber) on PP (polypropylene) substrates. One issue that keeps popping up is the appearance of water vapor or moisture-related defects, like bubbles, haze, or surface imperfections, in the final product. It’s a

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