Mediprene 500M Syringe Plunger Seals

Mediprene 500M Syringe Plunger Seals

TPE materials for plunger seals in single use syringes.

Mediprene TPE for Syringe Plunger Seals

We have developed a range of Mediprene thermoplastic elastomers (TPE) for plunger seals in single-use syringes. The TPE seal, which is mounted on the end of the plunger, needs to provide a leakproof seal with the syringe barrel. As ease of use for the medical practitioner and patient comfort are also key requirements, the seal helps to optimize plunger movement for accurate dosage control and ease of injection.

Mediprene TPEs 500M Syringe Plunger Series


Originating from medical raw materials with high biocompatibility status and compounded under clean conditions, Mediprene TPEs are the material of choice for medical customers who want to maximize the probability that their devices will pass relevant medical tests.

All Mediprene TPE Syringe Plunger Series compounds fulfil a strict raw material selection policy. The raw materials are food contact compliant (FDA 21CFR and Commission Regulation (EU) No 10/2011) and have a proven level of biocompatibility:

  • The styrenic block copolymer has passed USP Class VI
  • The paraffinic oil is a medicinal white oil complying with the EP for liquid paraffin and USP 24 for mineral oils
  • The PP has passed the USP Class VI tests and meets the requirements in the EP Monograph 3.1.3 Polyolefins
  • The components of the black masterbatch have passed USP Class VI or corresponding parts of ISO 10993

The Mediprene Concept

The Mediprene concept does not start and end with the product, it also encompasses how we work. From our Mediprene team, with specialist knowledge of the medical market. Through product development, raw-material selection, regulatory compliance, to production controls, traceability and change management.

Our Mediprene Sales Team...

Maria Karlsson

Key Account Manager-Medical, HEXPOL TPE AB
+46 532 60 75 19
Guido Heinen

Guido Heinen

Key Account Manager - Medical, (DACH, France, BeNeLux) HEXPOL TPE AB
+32 479 840 367


You can also visit our Downloads page for more brochures and information.

Mediprene TPE for Plunger Seals Product Guide

TPE Processing Guide

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