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A Swell Idea from HEXPOL TPE

HEXPOL TPE has turned the usual water-resistant properties of Thermoplastic Elastomers (TPE) on their head to engineer hydrophilic materials that swell up to ten times their volume when immersed in water.

Dryflex WS is a range of thermoplastic elastomers (TPE), which contain hydrophilic particles. They swell at a controlled rate and percentage, with rates from 300 to 1000% when immersed in water. Levels can also be customised to meet the requirements of a specific application. When there is no longer water present the compound shrinks back to its original size, a process of expansion and contraction that can be repeated.

Dryflex WS materials are used in applications to form a positive seal and prevent the ingress or exit of water. HEXPOL TPE has also developed softer grades which offer excellent drapability, the choice for water stop applications where the profiles may be coiled or need to be fitted around complex structures.

Compounded in any colour, the water swellable TPE is 100% recyclable and can be processed using conventional plastic fabricating methods, including extrusion and injection moulding.

Watch the magic…

To demonstrate the properties of their Hydrophilic materials, HEXPOL TPE has created a time-lapse video and are asking the question “How would you use it?”

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HEXPOL TPE
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