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Aluminum Corrosion & Corrosion Prevention in a Seacoast Atmospheric Environment

Aluminum Corrosion & Corrosion Prevention in a Seacoast Atmospheric Environment
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Aluminum, after iron is the second -most widespread metal used on earth. Unpainted aluminum forms a protective aluminum oxide layer over the pure aluminum metal alloy and, in most atmospheric environments, is resistant to corrosion deterioration. However, pure aluminum is virtually always alloyed with other metallic elements to enhance its properties, primarily to increase its strength, but also to improve its formability, weldability, machineability, electrical conductivity, and corrosion resistance. 

Product Number: 51219-222-SG
Author: Kenneth B. Tator
Publication Date: 2019
Industry: Coatings
$0.00
$20.00
$20.00

Aluminum, after iron is the second -most widespread metal used on earth. Unpainted aluminum forms a protective aluminum oxide layer over the pure aluminum metal alloy and, in most atmospheric environments, is resistant to corrosion deterioration. However, pure aluminum is virtually always alloyed with other metallic elements to enhance its properties, primarily to increase its strength, but also to improve its formability, weldability, machineability, electrical conductivity, and corrosion resistance. There are many circumstances in which aluminum alloys are prone to corrosion and require treatment such as conversion coating and painting to prevent corrosion. Aluminum corrosion will be discussed, as well as the means to protect aluminum from corrosion, including anodizing, and painting. In-shop painting techniques will be discussed, including coil coating, and the application of conversion coatings (chromated and non-chromated), as well as in-situ field painting and repair. Industry specifications specific to the painting of aluminum will be presented and contrasted. Popular coating systems for aluminum complying with those specifications will be mentioned.

Aluminum, after iron is the second -most widespread metal used on earth. Unpainted aluminum forms a protective aluminum oxide layer over the pure aluminum metal alloy and, in most atmospheric environments, is resistant to corrosion deterioration. However, pure aluminum is virtually always alloyed with other metallic elements to enhance its properties, primarily to increase its strength, but also to improve its formability, weldability, machineability, electrical conductivity, and corrosion resistance. There are many circumstances in which aluminum alloys are prone to corrosion and require treatment such as conversion coating and painting to prevent corrosion. Aluminum corrosion will be discussed, as well as the means to protect aluminum from corrosion, including anodizing, and painting. In-shop painting techniques will be discussed, including coil coating, and the application of conversion coatings (chromated and non-chromated), as well as in-situ field painting and repair. Industry specifications specific to the painting of aluminum will be presented and contrasted. Popular coating systems for aluminum complying with those specifications will be mentioned.

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