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News 11 Nov 2026

Thermal Management and Sealing in EV Battery Packs - Silicone Foam

The electric vehicle (EV) market is accelerating at a rapid pace as governments around the world introduce strict regulations and...

News 12 Oct 2026

Why HT800 Strips Are a Great Choice for Electrical Enclosure Seals

Exterior electrical enclosures face a constant battle against the elements, requiring robust sealing solutions to maintain their mandatory IP ratings....

Essential Properties Rail Materials Must Have

News

July 1, 2024

At CB Frost, we stock, supply and convert a wide range of high-performance materials to meet the stringent requirements of the modern Railway industry. The materials used in the construction of rail carriages play a pivotal role in ensuring the safety, efficiency and longevity of the vehicles and carriages. As...

rail materials

At CB Frost, we stock, supply and convert a wide range of high-performance materials to meet the stringent requirements of the modern Railway industry. The materials used in the construction of rail carriages play a pivotal role in ensuring the safety, efficiency and longevity of the vehicles and carriages. As technical advancements continue to shape the rail industry, understanding the essential qualities that rail materials must possess has become increasingly important.

Having established long-lasting partnerships with Rogers Corporation, a global leader in engineered materials, and Armacell, specialists in producing high-performance insulation materials and technical equipment for the rail industry, we work with the highest quality of special rail materials available.

With our extensive knowledge of specialist materials, rail industry requirements, and converting materials into a wide range of products for sealing, insulation and vibration isolation, CB Frost is here to provide expert advice on material selection and important considerations to make for each rail application.

Rail Products, Materials and Applications

At CB Frost, we supply a wide range of products for rail applications, including:

  • Die cut gaskets and washers
  • Tape/strip for sealing applications
  • Fabrications
  • Rubber mouldings
  • Sponge and rubber extrusions
  • Seat pads
  • Machined plastics

All products are manufactured in house from our wide range of EN45545-2 (European Fire Safety Standard) compliant materials, including:

    • Bisco® HT200 sound block silicone – Acoustic barriers
    • Bisco® HT800 medium silicone foam – Door seals, gap fillers, HVAC seals, LCD display and lighting gaskets, vibration isolation
    • Bisco® BF1000 soft silicone foam – Gap fillers, HVAC seals, LCD display and lighting gaskets, smoke seals
    • Bisco® BF2000 ultra soft silicone foam – Door seals, gap fillers, HVAC seals, LCD display and lighting gaskets, smoke seals,
    • CBF Sil-V0 silicone sponge – Door seals, gap fillers, HVAC seals, LCD display and lighting gaskets, smoke seals,
    • MF1 (55) seating foam – Seat cushioning
    • MF775 (FR8775) silicone rubber – HVAC seals, LCD display and lighting gaskets, rail partitioning
    • LSLT EPDM rubber – Door seals, LCD display gaskets, rail partitioning
    • LSLT neoprene sponge – Gap fillers, LCD display gaskets
    • Rail SD and SDC Insulation foam – HVAC seals 
    • Sustamid (plastic) – Cable Clamps

Our range of high-performance materials for use in the rail industry are selected to provide:

  1. Durability and Longevity – Materials must withstand harsh operating conditions, including temperature fluctuations, moisture, and mechanical wear, ensuring long-term performance without frequent replacements.
  2. Fire Resistance – Compliance with stringent fire safety standards such as EN45545-2 and BS6853 is crucial to protect passengers and equipment in case of fire. Fire safe materials are designed to prevent the spread of fire and smoke through rail vehicles and do not produce toxic fumes when exposed to fire. Our high-performance materials are compliant to EN45545-2, BS6853 Cat 1A and UL94 approved to V-0 and HF-1.
  3. Thermal Insulation – Effective thermal insulation helps maintain temperatures within rail vehicles, not only for the comfort of passengers, but to help enhance energy efficiency for HVAC systems. 
  4. Noise Reduction – As trains travel along rail tracks at high speeds, they can generate high levels of sound, so it’s important that rail materials for sound insulation applications should possess excellent sound absorption properties to minimise noise levels and enhance passenger comfort.
  5. Vibration Damping – Effective vibration damping reduces wear and tear on vehicle components and improves ride comfort for passengers.
  6. Elasticity and Flexibility – Materials need to be elastic and flexible to provide effective cushioning and adapt to various shapes and movements without losing their sealing capabilities.
  7. Environmental Resistance – Materials must be able to resist environmental factors such as UV, Ozone and various weather conditions to maintain their integrity over time.

These qualities ensure that materials used in rail vehicles provide reliable and effective performance for sealing, cushioning, noise reduction, and vibration isolation, enhancing safety, comfort, and efficiency.

Selecting High-Performance Materials

Choosing rail materials with the right qualities is essential for ensuring the safety, reliability, and efficiency of rail systems. Materials that offer durability, longevity, fire resistance, thermal insulation, and effective noise and vibration damping are critical to maintaining the integrity of rail infrastructure and enhancing passenger comfort. 

Selecting the appropriate materials can significantly reduce maintenance costs, minimise downtime related to maintenance and repairs, and comply with stringent safety regulations. As specialists in supplying and converting high-performance materials for a wide range of essential rail applications, we are here to ensure that you get tailored solutions that meet the specific demands of your rail projects.

To discuss your rail industry project needs, contact us today.

Keep up to date with the
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Sponge, Rubber and Plastics Specialists
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Changes at CB Frost – A Look Back at 2023
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Beyond the Basics: A Deep Dive into the Unique Properties of General Purpose Silicone Rubber
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How Do BF2000 Strips and Gaskets Enhance Passenger Evacuation Times in Rail Fires?
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When a fire breaks out inside a rail carriage, passenger safety relies on how long internal seals can delay the spread of flames, smoke and toxic gases. Specifying BF2000 strips and custom gaskets provides an essential barrier to prevent rapid fire propagation, preserving carriage air quality, and maintaining clear emergency visibility. These ultra-soft, highly compressible […]

Extending Railcar Life: How Smart Material Upgrades May Improve Safety, Comfort, Longevity and Compliance
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A refurbishment project often begins with a walkthrough of a decades-old train. The seats may have lost their  comfort, or the door seals no longer close tightly. Panels rattle under vibration, and the materials behind them were never designed for today’s safety concerns. Yet the frame is solid, and the operator’s goal is clear: extend […]

CB Frost Rolls with the Rail Industry Technology Roadshow
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The rumble of rail industry innovation echoed around the UK this March, as the Rail Forum Rail Industry Technology Roadshow took to the roads. Spanning eight busy days, from the 10th to the 21st March, this one-of-a-kind event brought cutting-edge rail solutions directly to the heart of the industry, thanks to a state-of-the-art trailer, transformed […]

Rubber Moulding: Injection Moulding or Compression Moulding?
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Over the decades, we have gained significant expertise in rubber moulding processes. With our extensive catalogue of materials, we supply moulded rubber parts in a range of commercial materials, along with industry specific grades, ensuring that our customers can choose the best material to suit their application.  Our team is always on hand to help […]