Thermal Spray Zinc Duplex Case Study: Coating an In-Service Bridge in Alaska

Zinc coatings provide a barrier that protects the substrate from contact with an electrolyte while keeping away corrosive elements. For this project in Kodiak Island, Alaska, the GNWC crew applied a thermal spray zinc metallizing coating system to an in-service duplex metallized bridge while dealing with challenges such as materials delivery, supply chain issues during COVID, weather fluctuations, and 140-mile=per-hour winds.