PROFESSIONAL SERVICES
Breakthrough rail sector coating gets green light Dave Bottomley, of Sherwin-Williams Protective & Marine Coatings, describes a successful trial with Network Rail. A
new specialist coating product for rail sector infrastructure – offering cold curing
down to 0C and high adhesion when applied to damp steelwork – has been trialled successfully on a Network Rail structure.
The technical team at Sherwin-Williams Protective & Marine Coatings has developed the Dura-Plate 301W, the latest in the family of products developed as a cold curing expansion of its surface and humidity tolerant epoxy technology.
The new coating is undergoing independent testing to Network Rail standards M24 and M34 for all preparation methods including blasting and mechanical formats following the successful fi eld trials at Preston, Lancashire.
The cost of maintenance has long been an issue for rail management, with many projects having to be undertaken during night time temperatures in damp conditions, especially during the winter months in Britain and the rest of Europe.
The Dura-Plate 301W now offers an extended painting window and with it increased effi ciencies and the potential for overall project cost savings.
Application trials to date have been very encouraging with adhesion values particularly high where the product has been applied to damp surfaces prepared by abrasive blast-cleaning and mechanical methods.
Current major bridge maintenance projects involving Sherwin-Williams Protective & Marine Coatings include the Tay Rail Bridge, the Royal Albert Bridge, Kingston Bridge, Langley Moor Viaduct and Calder Viaduct.
Wayne Grayson, protective coatings manager for Story Contracting, working with Network Rail, said: “We wanted to look at using a coating which could be applied in particularly damp, cold conditions during the winter months at night-time
when most of the maintenance work has to be completed, and this new technology achieved the objectives during the trials.”
Approvals from all recognised international bodies have been granted for the suite of Dura-Plate 301 products including Norsok, Navsea/US Navy and the IMO, including the world’s only IMO PSPC approval over UHP water jetting and a zinc- free shop primer. Full approvals are expected soon for Dura-Plate 301W.
The Sherwin-Williams Company was founded in 1866 in Cleveland, Ohio. Today it has 33,000 employees, with annual sales of more than $9bn. In 2011, Sherwin-Williams acquired Bolton-based Leighs Paints.
Dave Bottomley
FOR MORE INFORMATION
www.sherwin-williams.com/protectiveEMEA
rail technology magazine Apr/May 14 | 195
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