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Dryflex TPE Delivers on Compression Set Performance

The HEXPOL TPE group, which brings together the ELASTO and Müller Kunststoffe businesses, has developed a range of TPE compounds with optimised compression set performance.

The range of thermoplastic elastomers (TPE), known as Dryflex CS, are based on SEBS and have been engineered to deliver low compression set values. Compression set is the measure of permanent deformation remaining when an applied force is removed. A TPE sample is compressed to a specific deformation, for a specified time and at a specific temperature. The compression set value is the percentage of the sample that fails to recover to its original height and is an important performance indicator for applications such as seals, flexible connectors and gaskets. For a 40 shore A hardness TPE, typical compression set values are 65 to 70 percent, with the Dryflex CS range this is reduced to 40 percent (22 hours at 100 degree).

The raw materials used to manufacture Dryflex CS TPE compounds are compliant with FDA and 10/2011 EC regulations, the compounds also offer excellent organoleptic performance. The range includes hardnesses from 40 to 90 shore A with a service temperature range from -40 to 100 degree centigrade. The compounds are suitable for injection moulding and extrusion and adhere to PP and PE for 2K applications. The compounds are easy to colour with transparent grades available.

“Our goal is to engineer intelligent TPE solutions which precisely match application requirements, but also to find solutions that meet gaps in the market. We continually develop new material combinations that push the performance and design possibilities of our compounds” commented Klas Dannäs, Global R&D Coordinator at HEXPOL TPE. “Our new Dryflex CS range was developed to address demands for TPE compounds that deliver low compression set values”.


The HEXPOL TPE Family brings together the ELASTO businesses in Sweden, UK and China and Müller Kunststoffe in Germany. We are at the forefront in the development and manufacture of custom formulated thermoplastic elastomers (TPE) and complimentary compounds.

Our family delivers a trusted combination of material know-how, R&D, production capability and comprehensive technical services. Alongside European and Asian production and product development facilities, as part of the HEXPOL group of companies, we share an extensive global footprint covering EU, Asia and NAFTA, enabling us to support our customers worldwide.

A comprehensive product portfolio covering TPS, TPO, TPV, TPU, soft PVC, cork compounds and masterbatch is led by global brands Dryflex®, Mediprene®, Lifoflex®, EPSeal®, Lifolit®, Lifocork®, Lifobatch® and Lifoprene®. We support OEMs, moulders and designers at all stages of product development in the medical, electronic, automotive, caps & closures, construction and consumer markets.

HEXPOL TPE is part of HEXPOL, one of the world’s leading polymer groups. www.hexpol.com

Mediprene®, Dryflex®, EPSeal® , Lifoprene®, Lifoflex®, Lifocork®, Lifolit® and Lifobatch® are registered trademarks property of the Hexpol group of companies.

For further information please contact:
Jill Bradford Marketing & PR Manager, HEXPOL TPE
tel +44 161 654 2369 | jill.bradford@elasto.co.uk