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Flame Retardant TPE for Railroad Applications

Müller Kunststoffe, a custom compounder of thermoplastic elastomers (TPE) and complimentary materials, has developed a range of halogen free, flame-retardant TPE compounds suitable for applications in the rail industry.
The compounds, known as Lifoflex FLAM, are halogen and antimony free, therefore they do not produce corrosive and toxic gases such as hydrochloric acid or aromatic bromine in case of fire. They conform to UL94 V0 and European directives 2011/65/EU (RoHS) and 2003/11/EC at various wall thicknesses.

The Lifoflex FLAM series 700 has been especially designed for applications inside of railway vehicles (profiles, cable grommets, connectors, electrical insulation). The compounds had been tested along DIN 5510-2:2009-05, a preventive fire protection test in railway vehicles, and received the following classifications:

Flammability S3
Drip Formation ST2
Smoke Formation SR2

The DIN EN ISO 5659-2 fume toxicity test yielded an FED classification of 0.14 (max. permissible: ≤ 1) for the tested material (tzul = 30min).

Lifoflex FLAM grades are available in hardnesses ranging from 40 to 90 Shore A. They offer good adhesion to thermoplastics such as PP and PE for overmoulding and co-extrusion applications. Grades can also be combined with additional compounding technologies, such as colour, antistatic or electrical conductivity, while maintaining the materials RoHS compliance.

Applications for Lifoflex FLAM TPE compounds include; cords, connectors, electrical insulation, railway vehicles, cavity wall sockets as well as miscellaneous gasket profiles.

Müller Kunststoffe are the German arm of the HEXPOL TPE Family.




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. http://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