ANODIZING
Trimen Industrial will source quality aluminum anodizing services to ensure a clean, aesthetic surface finish for the aluminum components that we fabricate for our customers. We’ll handle all of the sourcing for you as needed through our trusted partners, providing you with durable, long-lasting, and aesthetically pleasing aluminum parts that meet your needs.
ALUMINUM ANODING – A
PROTECTIVE, VERSATILE COATING
Anodizing is a type of surface treatment most commonly performed on aluminum components in order to increase their natural resistance and provide them with a vibrant, colored appearance. In a controlled chemical reaction, the surface of the aluminum is converted into a thin, durable layer of aluminum oxide that can withstand corrosive conditions, everyday wear and tear, and physical abrasion.
Aluminum anodizing also has the added benefit of serving as an excellent base for dyes or paints. The parts can be colored during the treatment, or painted over afterwards, depending on the type of anodization performed, the colors required, and the geometries of the parts themselves.
THE THREE MAIN TYPES OF
ALUMINUM ANODIZING
TYPE I – CHROMIC ACID ANODIZATION
This type of anodizing uses chromic acid in the chemical reaction to convert the surface of an aluminum part into aluminum oxide, and parts treated with Type I anodization have good forming qualities and resistance. However, Type I requires especially careful handling and specialized facilities due to the toxicity of chromic acid, and tends to only be used in very particular situations.
TYPE II – SULFURIC ACID ANODIZATION
Type II is the most common and widely used type of anodization, using sulfuric acid to convert the surface of an aluminum component into aluminum oxide. This treatment provides a harder surface than Type I, as well as excellent resistance to corrosion and wear. Being safer and less energy consuming than Type I, sulfuric acid anodizing has many different applications, which has helped to contribute to its popularity.
TYPE III – HARD ANODIZATION
Like type II anodizing, type III also uses sulfuric acid in the chemical reaction, but at a much higher current concentration and a higher voltage. This results in a thicker and harder coating that, while not beneficial for parts that have to meet tight tolerances, offers the best possible abrasion, wear, and corrosion resistance.
READY TO GET STARTED?
Trimen Industrial LLC is your partner for quality precision CNC machining and powder coating services, and much more. To get started with us, or if you have any questions, don’t hesitate to contact us today!