Aluminum anodizing is the process of creating a protective oxide layer on the surface of aluminum, which improves its durability, corrosion resistance, and aesthetic appearance. Initially, Aluminum anodizing was primarily used to improve the appearance of aluminum products. However, over time, it became apparent that anodizing also improved the durability and corrosion resistance of aluminum, leading to its widespread adoption in many industries. Advancements in anodizing technology have led to the development of new anodizing methods, making it a critical part of modern manufacturing. Read More…Aluminum Anodizing Aluminum anodizing is a finishing process used on aluminum to harden surfaces and to increase the wear resistance and corrosion resistance of this corrosion-prone metal. It works by engaging in electrolytic passivation and thickening the layer of oxide on the metal’s surface.
Plouse Precision ManufacturingHighspire, PA | 717-558-8530
Plouse Precision Manufacturing is a contract manufacturing facility serving clients globally from our plant in Harrisburg, Pennsylvania. Proudly made in the U.S.A., parts from Plouse Precision Manufacturing are second to none. Plouse offers anodizing and plating services to improve product quality and durability. When precision matters, trust Plouse Precision Manufacturing.$$$
Anoplate CorporationSyracuse, NY | 315-471-6143
For over 40 years, Anoplate Corporation has offered high-quality metal finishing services—titanium and aluminum anodizing; anodizing of components; electroless nickel PTFE finishing; plus impregnating services. Our anodizing processes include chromic, sulfuric and hard coat anodizing.$$$
Tompkins Metal Finishing, Inc.Batavia, NY | 800-234-2116
At Tompkins Metal Finishing, we offer mid to high volume aluminum anodizing. We do pre-cleaning, etching, deoxidizng, dyeing and sealing. We can achieve a wide range of surface finishes from bright to dull matte in clear, black, gold, blue and red. Other methods are also available with consideration of alloy, coating thickness, masking requirements and racking instructions.$$$
Quality Coatings, LLCSpokane, WA | 509-922-1069
Just how would you like your aluminum anodizing? At Quality Coatings, we offer color anodizing (camouflage, full color), clear anodizing, bright dip anodizing, hard coat anodizing, Tuffcoat™ (Teflon® impregnated), Flexicoat™ (bendable) or zinc anodizing for zinc die cast parts.$$$
Dajcor Aluminum Ltd.Chatham, ON, Chavies, KY | 877-556-9191
Dajcor Aluminum is the leading Canadian supplier of extruded, fabricated/machined and anodized components and assemblies to the automotive, renewable energy, transportation, building trades, military, recreation, and consumer-product industries.$$$
Aluminum Anodizing Companies List
How Aluminum Anodizing Is Performed
The aluminum anodizing process is carried out by immersing the aluminum part in an electrolyte solution and passing an electric current through it. This causes the surface of the aluminum to oxidize and form a layer of aluminum oxide. There are several methods of aluminum anodizing, including sulfuric acid anodizing, chromic acid anodizing, and hard anodizing.
Sulfuric acid anodizing is the most common method used and involves immersing the aluminum part in a sulfuric acid electrolyte solution. This method produces a thick and hard anodic coating that is highly resistant to corrosion and wear. Chromic acid anodizing is used for parts that require a thin and highly conductive coating, such as electronic components. Hard anodizing is a specialized method that produces a thicker and harder anodic coating that provides high wear resistance.
Limitations of Aluminum Anodizing
Although aluminum anodizing has numerous benefits, there are some limitations associated with the process. Anodizing can only be performed on aluminum or aluminum alloys, which limits its application to other metals. The size and shape of the parts that can be anodized are limited by the size of the anodizing tank. Certain conditions, such as high temperatures and pH levels, can cause the anodic coating to break down, leading to corrosion. Anodizing can also be costly, particularly for complex parts or low-volume production runs.
Rules and Regulations Regarding Aluminum Anodizing
There are environmental regulations surrounding aluminum anodizing. They are designed to prevent hazardous chemicals from being released into the environment. ISO (the International Organization for Standardization) has ISO 10074:2021 specifications for companies that want to anodize aluminum and aluminum alloys. Companies must adhere to these regulations to ensure their operations are safe and environmentally friendly. Additionally, employees must follow workplace safety guidelines to protect employees from exposure to hazardous chemicals during the anodizing process. Compliance with industry standards ensures the quality of the anodized parts meets the required specifications.
Benefits of Aluminum Anodizing
The benefits of aluminum anodizing are numerous and include improved surface properties, such as increased hardness and wear resistance. The process also improves corrosion resistance, prolonging the lifespan of the aluminum part. Anodizing also offers a wide range of color options, allowing for customization and improved aesthetic appearance. Additionally, anodizing does not add weight to the part, making it an ideal choice for weight-sensitive applications.
Applications of Aluminum Anodizing
Aluminum anodizing is widely used in many industries, including:
Anodized aluminum is commonly used for architectural elements such as windows, doors, and facades. Anodizing provides a durable finish that withstands weathering and corrosion.
Anodized aluminum is used extensively in the aerospace industry due to its lightweight, strength, and corrosion resistance. Applications include aircraft frames, wings, and engine components.
Anodized aluminum is used in the automotive industry for parts such as wheels, trim, and grilles. The anodizing process improves wear resistance, corrosion resistance, and appearance.
Due to its electrical conductivity and corrosion resistance, anodized aluminum is used in electronic devices such as smartphones and laptops.
Due to its biocompatibility and corrosion resistance, anodized aluminum is used in medical devices such as dental instruments, surgical implants, and diagnostic equipment.
Anodized aluminum is used in many consumer goods, such as cookware, sports equipment, and jewelry. The process improves wear resistance and provides an attractive finish.
Anodized aluminum is used in military equipment such as guns and vehicles due to its durability, corrosion resistance, and lightweight.
Anodized aluminum is used in marine applications such as boat fittings, hulls, and masts due to its resistance to saltwater corrosion.
Anodized aluminum is used in packaging applications such as beverage cans and food containers. The process improves corrosion resistance and provides an attractive finish.
In addition to these applications, anodized aluminum can also be used in art and architecture for decorative purposes and in the construction of electronic circuitry due to its electrical conductivity.
Choosing the Correct Aluminum Anodizing Business
You can compare several companies using our directory of aluminum anodizing businesses. Each aluminum anodizing company has a business profile page highlighting their areas of experience and capabilities, along with a contact form to communicate with the company for more information or request a quote. Review each aluminum anodizing business using our proprietary website previewer to quickly learn what each company specializes in. Then, use our simple RFQ form to contact multiple aluminum anodizing businesses with the same form.