Galvalume Rolling Shutters
Steel trademarked the metallic coating Galvalume that is applied to a steel base sheet used in the forming of metal roong panels. Galvalume is an alloy with both zinc and aluminum in it. … It a nutshell, the aluminum provides the corrosion protection and the zinc provides the durability.
GALVALUME is a specific galvanized product made of 55% aluminum, 43.4% zinc alloy, and 1.6% silicon, a coating developed by ethlehem Steel and licensed to all major steel anufacturers. The silicon encourages the adhesion of the aluminum and zinc to the steel substrate during the fabrication process.
