Exit Device, Grade 2, Anodized Satin Alum

[Music] anodizing aluminum is an electrochemical process to convert the metal surface into an enotic oxide finish that is durable and highly corrosion resistant the anodic oxide structure originates from the aluminum and is composed entirely of aluminum oxide in simplest terms the aluminum oxide is grown from the underlying aluminum substrate it has a highly ordered structure that is well suited for coloring and sealing unlike paint or plating the finished anodized surface will not chip or peel the anodizing process consists of immersing the aluminum into a tank of sulfuric acid electrolyte while passing an electric current through the medium a cathode is mounted to the inside of the anodizing tank while the aluminum extrusions act as an anode here product is being racked for the first part of the anodizing process the aluminum to be anodized is loaded onto carrier racks which provide e