Silicone Uses in the Rail and Mass Transit Industries

The ever-increasing usage of rail and public transport worldwide means the need for high performance silicone rubbers to meet all the necessary safety regulations, keeping passengers safe while also withstanding continuous use in demanding applications. Viking Extrusions are specialists when it comes to silicone rail solutions manufacturing extrusions and mouldings from our VFR(2) fire safe silicone, which is used on rolling stock worldwide.


What are the technical specifications of VFR(2)?

VFR(2) / MF775 is a silicone rubber compound developed specifically for use in the rail industry. It is a fire safe material that when burnt produces low smoke and toxicity emissions. VFR(2) is compliant to BS6853 : 1999 ‘Code of practice for fire precautions in the design and construction of passenger carrying trains.’ (Category 1A conformity), BS EN ISO 4589-3 1996, NFX70-100 and also meets French standards; NF F 16-101 & NF F 16-102 Classification: F). The VFR(2) compound has been updated to also comply to the new regulations introduced to European railways in 2013 such as EN45 545.

As well as the above properties VFR(2) has resistance to extremely high and low temperatures -70°C to +200°C and excellent resistance to UV and Ozone.  This material is not easily pigmented, its natural colour is a cream/ off-white colour but various shades of grey work well.


What are the applications of VFR(2) / MF775?

VFR(2) can be manufactured as extruded profiles, moulded, or converted from sheet and strips in to a range of washers and gaskets. These applications include:


  • LCD Display Gasket
  • Window Seal
  • Door Seals
  • Gangway materials and seals
  • HVAC Seal
  • Lighting Seals
  • Vibration Isolation


How we can help

With over 25 years’ experience supplying silicone to the rail and mass transit industries, Viking Extrusions are well equipped to provide bespoke solutions to you individual manufacturing requirements, making sure that you comply with national and European standards.

For more information on how we can help please contact one of our technical advisors.