CSD Sealing Systems CSD Sealing Systems
Rail

Rail

Protecting vital rail assets above and below ground. Modern rail networks demand absolute reliability. With continuous vibration, weather exposure, ageing infrastructure, high passenger volumes and complex electrical systems, sealing failures can lead to unsafe conditions, signal outages, asset deterioration and costly service disruption. Every penetration – whether in trackside equipment, tunnels, stations or substations – must deliver dependable multi-hazard protection.

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Designed for rail demands

CSD’s engineered sealing systems are trusted across national rail networks, metro systems and light rail projects. Our long-life, maintenance-free solutions safeguard critical assets against fire, water, gas, smoke and environmental ingress, ensuring operational continuity and compliance with rail engineering standards. From upgrades and renewals to new line construction, CSD supports safer, more resilient rail infrastructure that stands the test of time.
Our Case Studies

Tested up to 10 bar

Watertight and gastight performance for ducts, tunnels and trackside chambers

Up to 4 hours EI-rated fire protection for stations

Depots and underground structures

Vibration- and corrosion-resistant

Systems built for harsh outdoor environments

50+ year service life

Proven through independent age testing

Re-enterable systems enabling cable

Upgrades during renewals or resignalling works

Approved solutions

Aligned with DNO, ATEX, DSEAR and rail industry engineering requirements

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Applications in rail infrastructure

Some of the elements of your rail infrastructure that CSD Sealing Systems can protect with our world leading solutions:

  • Service penetrations in underground tunnels, stations and cross passages
  • Trackside cabinets, signal equipment, power supply enclosures and communications housings
  • Underground duct sealing for fibre, LV/HV cables and signalling infrastructure
  • Fire-rated penetration protection in depots, electrical rooms and operational buildings
  • Weatherproof sealing for external wall penetrations and exposed rail-side assets
  • Flood ingress prevention in vulnerable low-lying rail sections and pump station areas
  • Upgrade and refurbishment sealing throughout renewals, modernisation and digital rail programmes
Cargo train on railway at sunset

Key Sealing Solutions

Explore the products designed to help protect the cable and pipe entries, entry points and cable ducts in your rail network.

Let’s protect your rail infrastructure together

Reach out to discuss tailored sealing strategies for your rail project.

Consent
View looking down railway lines in the evening
“The service provided by CSD was excellent. The installation crew were skilled, hard-working and resourceful. The team at CSD also integrated with our own men, supporting them with the external duct sealing.”

CSD client

Offshore