Glass Flake Epoxy Made for Bridges
Sherwin-Williams has developed a glass flake epoxy-based paint—originally developed for offshore structures in the North Sea—for use on bridges and highways.
The company's Protective & Marine Coatings division (formerly Leighs Paints, which Sherwin-Williams acquired in 2011) says it is the first to use the coatings technology for bridge and highway applications.
The system "eliminates the requirements for ongoing maintenance to significantly reduce environmental impact, save on repair costs, and extend asset life, offering up to 25 years’ protection," according to a product announcement.
Features and Applications
The three-coat preventive maintenance coating system is designed to deliver corrosion protection in harsh weather conditions. The technology debuted in a bridge application in 2011 when it was used to complete the legendary painting of the Forth Rail Bridge.
Sherwin-Williams says its glass flake epoxy coatings now feature of a number of other large bridge and highway projects, including 47 bridges across the M6 toll road, the Tay Rail Bridge and the Royal Albert Bridge.
Using glass flake technology to provide a thicker dry film in a single coat, the coatings system can be modified to meet the customer's requirements for cost, application and finish, the manufacturer says.
The selected paints typically consist of a higher-build blast primer, an epoxy glass flake build coat, and an acrylic urethane finish, as well as a stripe coat of epoxy glass flake.
“By transferring our innovative coatings technologies across markets, we have reduced the need for service and maintenance and extended asset life within the bridge and highways sector," said Nick Ball, marketing director EMEA at Sherwin-Williams Protective & Marine Coatings.
More information: http://sherwin-williams.com/protectiveEMEA.