Aluminum Anodizing Companies banner

Clear Anodizing

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

Clear anodizing is typically a sulfuric acid anodizing process, and as a result, offers better wear resistance than chromic acid anodizing and comparable corrosion resistance. Used in a variety of applications, clear anodizing benefits diverse industries including: architecture, for use in window and door frames, railings and siding; automotive, for use in trim and housings for various exposed parts; printing, for use as commercial photolithography plates; and industrial manufacturing, for sheet metal and various extrusions such as profiles and cases for additional surface protection. Read More…

Clear Anodizing Clear anodizing is an anodizing process that produces a uniform clear film on the surface of various metals, typically aluminum, which provides the metal with increased corrosion and wear resistance. Utilizing the process of electrolytic passivation, this film is an oxide coating, meaning a hard non-reactive surface, which typically has a thickness of less than .0010".
Request for Quote

Leading Manufacturers

Cicero, IL  |  708-222-5300

Our standard aluminum anodizing is sure to please! We are able to provide this service to you from our state of the art facility in Cicero, Illinois. We have proven time and time again that we are able to provide many diverse products, and have become known as one of the most versatile companies in the industry. Our capabilities and expertise are what allow us to be able to complete any finishing application with ease. Contact our staff to learn more today!

Request A Quote

Saporito Finishing Co. $$$

Reading, PA  |  610-374-5107

Specializing in color anodizing and chemical brightening for over 60 years, US Anodize has wasted no time in perfecting our aluminum anodizing methods and manufacturing process. We offer aluminum anodizing, PERMODIZE®, chromate conversion, and laser engraving. We serve a variety of industries, including automotive, military, medical, and more. We are capable of completing custom orders in our 50,000 square foot facility through the use of both of our high-volume anodizing lines.

Request A Quote

US Anodize $$$

North Tonawanda, NY  |  716-694-5001

Val-Kro Industrial Plating Inc. is an ISO 9001-certified company specializing in Electroless Nickel Plating, Type II Anodizing, Type III Anodizing, Chromate Conversion, Abrasive Blasting, Passivation, and Superfinishing. We offer a diverse line of Electroless Nickel Coatings with rack, barrel, and wire plating capabilities and can accommodate both low and high-volume production requirements. Val-Kro also offers both Conventional and Hardcoat Anodizing using our proprietary anodizing line.

Request A Quote

Val-Kro, Inc. $$$

Hillside, IL  |  708-547-6680

If you are looking for a durable, aesthetically pleasing finish, look no further. We offer a large array of chemical finishing services. We offer Type II, bright dip anodizing, and hard coat anodizing, as well as an architectural anodizing process and powder coating. Since our inception over 50 years ago, Ace Anodizing has cultivated a reputation of providing quick turnaround times and superior services and products with reliable quality you can trust. Rush services available.

Request A Quote

Ace Anodizing $$$
placeholder image Saporito Finishing Co. US Anodize Val-Kro, Inc. Ace Anodizing

Additionally, clear anodizing can be colored by means such as organic dyes and metallic salts to create colors such as red, yellow, blue and green for decorative applications such as jewelry or artwork. Some further benefits of clear anodizing include decreased part maintenance, reduced metal weight, being environmentally-friendly and increased production efficiency.

The clear anodizing process is basically identical to the Type II sulfuric acid anodizing process. A commonly used anodizing process, Type II sulfuric acid requires the metal to be fully immersed into sulfuric acid, a highly corrosive and oil-like acid that is formed from sulfur dioxide. When the metal is immersed in the acid an electric current, generally direct current, is sent through the sulfuric acid and reacts with anodes on the surface of the material. The reaction of the current and the anodes creates the hard outer film of oxidation.

After the material is removed from the sulfuric acid bath, it is then sealed through the use of hot water in order to enhance the corrosion-resistant properties of the film. If a color is going to be added, then the dye or salt must be introduced after immersion in the sulfuric acid bath but before sealing, so that when sealed, the color will become locked in.

While the addition of color can be eye-catching, clear anodizing allows the natural luster of the metal to shine through. Although aluminum is the most common material used in clear anodizing, other metals may be anodized as well including: titanium, magnesium, zinc, niobium and tantalum.

Clear Anodizing Informational Video