BATEGU is developing a flame-retardant EPDM rubber

BATEGU is developing a flame-retardant EPDM rubber

for high dynamic stress that meets the EN 45545 requirements for the manufacture of anti-vibration components in railway vehicles


At the end of March 2015, the Austrian specialist for sealing and anti-vibration technology BATEGU presented the advantages of the recently developed and globally unique BATEGU rubber (BATEGU®9559) at the international FIRE SAFETY IN RAILWAY SYSTEMS 2015 symposium in Vienna, organised by the Interdisziplinären Forschungsverbund Bahntechnik e.V.: BATEGU®9559 is flame-retardant, highly dynamic resilient, environmentally friendly, examined and confirmed. The new material has the same dynamic properties as natural rubber but fulfils simultaneously the highest fire protection regulations pursuant to the EN 45545 European railway fire protection standard.

BATEGU is a pioneer in the flame-retardant, highly-dynamic, resilient rubber sector. By 2011, BATEGU had already patented a material combination based on natural rubber for the manufacture of anti-vibration elements conforming to EN 45545 for railway vehicle bogies and successfully brought these onto the market.

Through a new internationally unique product and process innovation BATEGU has now succeeded in developing a material based on EPDM (ethylene propylene diene rubber) which can be used in dynamic applications previously reserved for natural rubber AND surpasses the requirements of the EN 45545-2 (R9 HL 3).

Until now, EPDM rubber was considered to be inappropriate for use in components with highly dynamic stress, in connection with the demands for technical fire protection properties such as flame-resistance, self-extinguishing properties, low smoke density at low toxicity of smoke gasses. With the new material BATEGU now meets all these requirements with one and the same material.

The new BATEGU rubber (Bategu®9559) meets the legal safety regulations and offers at the same time all technical advantages expected by manufacturers of railway vehicle and transport companies from rubber and rubber-to-metal bonded components, particularly the safe quality that requires no servicing for years.

BATEGU®9559 also meets the mechanical component-specific requirements. Completed endurance tests confirm that the new BATEGU material has excellent settlement behaviour as well as outstanding damping properties.

By now BATEGU disposes of numerous materials pursuant to the EN 45545 complying – according the intended application - with the different requirement classes (e.g. R9, R22, R23 and R24).

By using BATEGU anti-vibration components life threatening and other highly negative health effects can be decisively contained in the event of a fire.

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