It is not applied to the metal like a coating of paint, but fully integrated with the underlying aluminum. The anodic oxide, which rests on its aluminum substrate, exclusively consists of aluminum oxide. Oxygen ions are released from the electrolyte, and combine with the atoms of the metal being anodized. Nonferrous metals like aluminum and titanium are ideal for the anodizing process.ĭuring the anodizing process, a metal is submerged in an acid electrolyte bath and exposed to an electric current. Through an electrochemical process called anodizing, metal surfaces can be converted into corrosion-resistant, anodic oxide finishes that are both durable and aesthetically pleasing. For exterior parts, ensure that the powder meets AAMA 2604 standards for exterior architectural applications. For the best protection, steel parts are galvanized first, then painted using this process. This coating can be applied any metal, but typically steel or aluminum. Polyester powder coating protects metals from corrosion and harsh weather, and retains its color for years. The powder coated part is then heated in an oven to cure the coating. The powder clings to that part due to its static charge. Powder is then blown out of a gun onto that part. First, a static charge is applied to the part to be painted. The powder coating process is safe and environmentally responsible as well. Powder coating offers a smooth, uniform finish without streaking or running regardless of the shape or curvature of the surface you’re covering. Polyester powder coating is an excellent alternative to paint, and even provides multiple advantages over paint. Use polyester powder coating as an alternative to paint This process is available for steel but not suitable for aluminum. The process of hot-dip galvanization is relatively simple when compared to other corrosion protection processes, but is effective because both interior and exterior surfaces are coated during the dipping process.
The iron within the steel metallurgically reacts to the heated zinc, forming a tightly bonded alloy coating that will protect the steel from corrosion. So how do we lend our metal surfaces an extra barrier to natural (and unnatural) corrosion? Below, we’ve outlined a few methods you can use to protect your metals:ĭuring the process of hot-dip galvanizing, fabricated steel is submerged in a cauldron of molten zinc. Road salt and sea spray are among the two greatest contributors to corrosion in outdoor metal.Ĭontact Structura to learn which corrosion prevention methods will work best for you. Virtually all metals used in construction or production are inherently unstable, and have a tendency to revert to other more stable forms by oxidizing or rusting. Metals corrode when their environments are unsuitable.
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