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FAKUMA 2015: Mediprene TPE offers solutions for syringe plunger seals

ELASTO Sweden, part of the HEXPOL TPE group has expanded their range of Mediprene TPE compounds for plunger seals in single-use syringes. The new grades will be among the materials showcased at the Fakuma exhibition taking place in Friedrichshafen, 13-17 October, STAND B1-1217.

Niklas Ottosson, medical technical manager for ELASTO commented “Over recent years there has been a rise in demand for single-use syringes and a clear move from rubber to TPE for plunger seals. To support this growing market, we have expanded our range of Mediprene TPEs specifically designed for syringe plunger seal applications”.

Mediprene grades are sterilizable with gamma, EtO and steam and representative grades have passed cytotoxicity tests according to ISO 10993-5 and biocompatibility tests according to USP Class VI. The Mediprene materials are latex free, which reduces the risk of allergic reactions. Mediprene TPEs are resistant to many fluids used in the healthcare environment.

The Mediprene grades are available in a range of hardnesses from 43 to 73 Shore A. The TPE seal, which is mounted on the end of the plunger, needs to provide a leakproof seal with the syringe barrel, the Mediprene TPEs offer low compression set helping to maintain seal integrity.

ELASTO offer these grades as translucent or coloured compounds, made from medical grade raw materials. The colour masterbatch supplier has been selected with care, ensuring that not only the pigments and carriers are compliant but also that the masterbatches are manufactured under rigorous controls with regard to traceability, consistency and change control thereby fitting the Mediprene concept at ELASTO’s ISO 13485 accredited facilities.

Alongside their material advantages, because of the cost and speed at which they can be manufactured, Mediprene TPEs are being specified as an alternative to thermoset rubber. They require no vulcanisation and are 100% recyclable. Consistent shrinkage also allows for tight dimensional tolerances with fewer process steps and without the need for additional operations such as trimming.



HEXPOL TPE 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-Pacific 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.
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@hexpolTPE.com