GRP Materials: Advancing Rail Infrastructure with Glass Reinforced


To meet the demands of the varied and ever shifting landscape of railway infrastructure, material innovation is key to driving progress and meeting the evolving needs of modern transportation systems. One material that is increasingly gaining prominence for its versatile applications and superior performance is Glass Reinforced Plastic (GRP) also known as FRP (Fibre Reinforced Polymer).

With the Railway industries rapid adoption of GRP materials they are discovering new applications with each passing day and with the GRP sector set to grow $69 billion by 2031 with 4.8% CAGR manufacturers and suppliers are racing to keep pace with demand for a myriad of GRP products from roofing supplies, anti-slip products to structural shapes (profiles) and reinforcements in the form of rebar.

GRP’s use in construction is pervasive. In this blog, we’ll explore the plethora of ways in which GRP products, including profiles, rebars, fencing, stair treads, handrails, platforms, and bridges, are revolutionising the rail industry, and offering unparalleled advantages over traditional less versatile materials.

GRP Materials and the properties of GRP: What
FRP / GRP Products are used in the Railways?

GRP and FRP Profiles
Application: Trackside barriers and fencing, cable management systems, signalling equipment enclosures.
  • Advantages: Corrosion Resistant: Unlike steel counterparts, GRP profiles offer exceptional resistance to corrosion, ensuring longevity even in harsh outdoor environments. This property significantly extends the lifespan of railway infrastructure, reducing maintenance costs and downtime.
  • Lightweight: The lightweight nature of GRP profiles simplifies transportation, handling, and installation, reducing labour costs and construction time. This not only enhances operational efficiency but also minimises the environmental impact associated with transportation and installation processes.
  • Customization: GRP profiles can be easily moulded into various shapes and sizes to suit specific railway infrastructure requirements. Whether it’s curved barriers, angled cable trays, or intricate signalling enclosures, GRP’s flexibility in design and fabrication allows for seamless integration into diverse rail environments.

GRP Composite Rebar

Application: Reinforced concrete structures use GRP such as railway bridges, tunnels, and viaducts.
  • Corrosion Resistant: Traditional steel rebars are susceptible to rusting and oxidation, which compromises the integrity of concrete structures over time. Fibreglass rebars, on the other hand, are inherently corrosion-resistant, offering superior durability and longevity. This ensures the structural integrity of railway bridges, tunnels, and viaducts, minimising the risk of costly repairs or replacements.
  • Lightweight: The lightweight nature of GRP rebars simplifies handling and installation, reducing labour costs and construction time. This is particularly beneficial in railway infrastructure projects where efficiency and speed of construction are paramount, allowing for faster project completion and minimised disruption to rail operations.
  • Non-Conductive: GRP is used to provide electrical insulation, reducing the risk of electromagnetic interference in railway infrastructure. This property is crucial in environments where electrical conductivity must be minimised to ensure the safe and reliable operation of signalling systems, communications equipment, and other electrical components.

GRP Palisade and Mesh Fencing

Application: Perimeter fencing for railway tracks, stations, and maintenance facilities.
  • Durability: GRP palisade and mesh fencing offer unparalleled durability and resistance to corrosion, vandalism, and environmental factors. Unlike traditional materials like steel or wood, GRP fencing does not rust, warp, or degrade over time, ensuring long-lasting protection and security for railway infrastructure.
  • Low Maintenance: GRP fencing requires minimal maintenance compared to traditional materials, reducing lifecycle costs and downtime. With its smooth, non-porous surface, GRP fencing is easy to clean and resistant to graffiti, making it an ideal choice for railway environments where aesthetics and cleanliness are important considerations.
  • Aesthetic Appeal: GRP fencing can be designed to mimic the appearance of traditional materials while offering superior performance. Whether it’s a classic picket-style palisade fence or a modern mesh design, GRP fencing enhances the visual appeal of railway environments while providing robust security and protection.

GRP Stair Treads and Handrails

Application: Staircases, platforms, and pedestrian walkways within railway stations and facilities.
  • Slip Resistance: GRP stair treads and handrails are engineered to provide excellent slip resistance, enhancing safety for passengers and personnel in high-traffic areas. With their textured surfaces and ergonomic designs, GRP treads and handrails offer secure footing and grip even in wet or slippery conditions, reducing the risk of slips, trips, and falls.
  • Weather Resistance: GRP materials are inherently resistant to weathering, UV radiation, and chemical exposure. Unlike traditional materials like wood or metal, GRP stair treads and handrails do not rot, corrode, or fade over time, ensuring long-term performance and minimal maintenance requirements in outdoor railway environments.
  • Customization: GRP stair treads and handrails can be tailored to meet specific design requirements, including colour, texture, and dimensions. Whether it’s a curved staircase, a platform railing with integrated lighting, or a decorative balustrade, GRP offers endless possibilities for customization, allowing for seamless integration into railway infrastructure while enhancing the overall aesthetics and functionality of the space.

GRP Platforms & Bridges

Application: Railway platforms, pedestrian bridges, foot overpasses, and access ramps.
  • Strength and Durability: GRP platforms and bridges offer high strength-to-weight ratio, enabling the construction of robust and durable structures capable of supporting heavy loads. Unlike traditional materials like steel or concrete, GRP does not rust, corrode, or degrade over time, ensuring long-lasting performance and safety for railway passengers and personnel.
  • Resistant to corrosion: GRP materials are immune to rust and corrosion, making them ideal for outdoor applications where exposure to moisture and environmental elements is a concern. Whether it’s a platform canopy, a bridge deck, or an access ramp, GRP platforms and bridges offer superior resistance to the effects of weathering, UV radiation, and chemical exposure, ensuring minimal maintenance and maximum longevity.
  • Ease of Installation: The lightweight nature of GRP platforms and bridges simplifies transportation, handling, and installation, reducing construction time and costs. With their modular design and pre-fabricated components, fibre reinforced plastics can be quickly assembled on-site with minimal disruption to railway operations, allowing for faster project completion and improved efficiency.

Glass Reinforced Plastic: A composite material for Railway Infrastructure?

In conclusion, the versatility, durability, and performance of a range of GRP products make them indispensable in the rail industry, offering superior alternatives to traditional materials across a huge range of applications within Railway Infrastructure. As the railway industry continues to evolve to meet the demands of modern transportation systems, the adoption of GRP solutions is poised to play a pivotal role in driving efficiency, safety, and sustainability in the rail sector. Whether it’s trackside barriers, reinforcement rebars, perimeter fencing, stair treads, handrails, or platforms and bridges, GRP offers unmatched advantages that are reshaping the future of railway infrastructure.

Engineered Composites is a proud supplier of GRP to UK Infrastructure including HS2 and Network Rail, if you are looking for GRP products for any variety of application you can view our full range of adaptable, low weight and extremely robust GRP solutions. Get in touch with the team here.