Alseal 220I is a single-component, chromefreecoating compositionformulated for protecting ferrous alloys from both high temperatureheat oxidation and at the same
time offer sacrificial (cathodic) protection to the base metal.Because of its high temperature capabilities, it offersexcellent
protection when exposed to cyclic high temperature and corrosivesalt environments, continuing to provide sacrificial propertiesat
temperatures to 1150°F. Although an inorganic coating, itcombines thermal stability, excellent adhesion and hardness, alongwith good flexibility... a property not found in most inorganiccoatings. As mentioned above it offers salt corrosive protection to1150°F. At about 1200°F. the aluminum oxidizes to a point where itno longer provides its excellent sacrificial
properties, however, it will continue to offer excellent heatoxidation continuously to 1600°F. Further, the coating formed fromAlseal 220I composition offers superb thermal shock 1600°F。
