Anodizing

A reliable source for Aluminum Anodizing information and leading Aluminum Anodizing Companies.

Anodizing is an important industrial process; anodized metals are popular throughout industry and commerce, including the computer product context. They are valued for their corrosion resistant properties and for their appearance. They can be used in decorative paneling, as housing for electronics like computers, as furniture components and in many other applications. Read More…

Anodizing Anodizing is a technique used to change the exterior of a metal. A change in the surface topography and crystal structure may occur, as well as an increase in corrosion resistance when anodizing. The process of anodizing is often used to protect titanium and aluminum from abrasion and corrosion. It also allows metals to be dyed in various colors.

Leading Manufacturers

Toronto, ON  |  1-888-741-6159

Wouldn't it be great if there really was a superhero that could swoop in and meet all of your extrusion needs? Well, think of Extrude-A-Trim as the next best thing. We have one of the largest inventories of specialty extruded aluminum products in North America. Here at Extrude-A-Trim we offer aluminum anodizing to increase corrosion and wear resistance. Get your free quote today!

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Extrude-A-Trim $$$

Westbrook, ME  |  207-761-0392

Silver and gold. Got your attention? We do silver and gold plating as well as aluminum anodizing. As a matter of fact, we also perform copper, gold, nickel and tin plating. We are full-service people. Rack chromic, sulfuric and hardcoat anodizing are some of our processes. FAA, AS 9100 approved.

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Silvex Surface Technology $$$

Chatham, ON  |  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. Dajcor is an aluminum extrusion company, with complete value added in-house capabilities – your ‘One-Stop’ extrusion supplier!

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Dajcor Aluminum Ltd. $$$

Dexter, MI  |  734-426-2855

Since 1976 Alpha Metal Finishing has been a trusted leader in anodizing, hardcoat and chemical film (chromate conversion) services. In addition, Alpha now provides stainless steel passivation. We are passionate about providing superior quality, rapid turnaround, and friendly, responsive service. Alpha is ISO 9001:2015 certified. Call us today for your finishing needs!

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Alpha Metal Finishing Company $$$

Syracuse, 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.

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Anoplate Corporation $$$

Burbank, CA  |  800-497-5569

For over 50 years, K&L Anodizing has provided metal finishing services for manufacturers, machine shops, tool & die, aerospace, medical, government & commercial industries. We provide multicolor anodizing; anodizing per Mil-8625—types I, II, III—dyed & non-dyed; & a variety of related services.

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K & L Anodizing Corporation $$$
placeholder image Extrude-A-Trim Silvex Surface Technology Dajcor Aluminum Ltd. Alpha Metal Finishing Company Anoplate Corporation K & L Anodizing Corporation

Types of anodizing include titanium anodizing, niobium anodizing and aluminum anodizing. Aluminum anodizing is the most popular because the chemical structure of aluminum alloys are strengthened by an anodizing treatment rather then deteriorated as some metals are. Iron, for example, rusts when bathed or painted with the acid treatment. The essence of this acid treatment varies, but three common styles are the chromic acid anodization, sulfuric acid anodization and hard anodization.

All three processes involve immersing a metal into a vat of chromic or sulfuric acid, and then using an electric current to change the chemical structure on the surface of the metal. With certain metals like aluminum and titanium, the oily and corrosive substances strengthen and harden the metals, making them weatherproof and also improving them aesthetically.

Color Anodized Aluminum Part Anodizing Services - Extrude-A-Trim

Color anodizing, clear anodizing and custom anodizing are a few examples of other anodizing processes also offered by anodizing operations. Clear anodizing is the natural result of a sulfuric acid treatment, although it can be turned into a color anodization because the pore size after anodizing is larger and soaks up color better.

Custom anodizing is available for consumers that require specific levels of hardness, thickness or color. This is when the less well known anodizing styles are employed, smaller scale processes that offer more control and precision. Painting rather then submerging the metal in organic, citric or boric acids is a variation often used by custom anodizers. The anodizing process, which literally is changing the chemical structure of a metal, is not always environmentally friendly.

Certain types of anodizing emit toxic fumes into the atmosphere that can be detrimental to the health of the planet as well as humans in the area. Thankfully, there are enough safe acids that can be utilized that the industry is not suffering, and there are organizations that regulate the process to ensure safety.