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For corrosive rail environments like coastal track, wet tunnels, level crossings and stray current environments, Zinoco® ensures maximum rail life.
With superior durability and corrosion protection for rails our industry award-winning Zinoco is simple to install and maintain, delivering improved safety and availability of rail networks.
Find out more in our video
Protection in harsh conditions
British Steel has a long history of providing solutions to customer issues. Our Zinoco coated rail is an example that provides corrosion protection to rails in harsh corrosive conditions. Locations that typically give rise to corrosion issues are:
Corrosive environments can reduce rail life vastly, with unprotected rail lifetimes below six months being reported in some instances. Whilst loss of rail section due to corrosion can occur generally or in more localised areas (e.g. around rail fastenings) it is also important to note that foot fatigue failures often occur as a result of foot corrosion. Corrosion pits (often unseen) on the bottom of the rail can initiate fatigue cracks which can then grow undetected, resulting in rail failure.
The corrosion protection performance of Zinoco coated rail has been validated in both laboratory tests and track tests with Network Rail, SNCF (as part of the IDR2 group) and RATP.
The proven performance and protection offered by Zinoco in long rail form for tunnels and coastal regions has been recognised in the recent extended approval for lengths up to 216m by Network Rail. Here are the first long length rail deliveries being used to protect in a wet tunnel environment.
Sacrificial (cathodic) protection for damage tolerance
Most rail coatings provide a barrier to corrosion by preventing air, water and salts from coming into contact with the steel rail.
Zinoco provides an excellent barrier to corrosion with greatly enhanced impact resistance compared to previous coatings, but it also has a key second method of defence by providing sacrificial protection, even if areas of the coating have been breached. See how it works here.
Zinoco® is a registered trademark of British Steel