While anodizers most frequently work with aluminum alloys, due to the decreased corrosion resistance that results from the addition of the alloyed elements such as copper, iron and silicon, they also work with various other metals including niobium, tantalum, magnesium, zinc, titanium and tungsten. As a result of the variety of workable metals, anodizers are able to provide metal materials and parts to a wide range of industries including: industrial manufacturing, for anodized bars, rods, angles and profiles used in various processing applications. Read More…
Located in Woonsocket, RI, Sanford Process serves customers globally with aluminum coating and finishing services. We license our technology throughout the Americas, Europe and Asia. Sanford Process is a subsidiary of Katahdin Industries, Inc., which specializes in surface coatings and metal finishing application technologies and related services. Visit our website for more information!
Aluminum finishing specialist with over 50 years of personalized service in the anodizing industry & the largest commercial anodizing tanks in the country! A variety of capabilities for even your difficult jobs to meet & exceed all standards for clear & colored, protective & decorative, sulfuric, duranodic & chromic anodizing of parts large & small. Same-day estimates & 1 week or less turnaround.
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.
Since 1945, Light Metals Coloring has been one of the largest independent aluminum anodizing job shops. Light Metals Coloring provides hard coat anodizing, bulk anodizing, rack anodizing, clear anodizing, sulfuric acid anodizing, chromate conversion anodizing and color anodizing.
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.
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Anodizers - Extrude-A-TrimThese applications include electronics, for protective encasings of a variety of electrical equipment; automotive, for use as the trim and the body of the vehicle; military, for small parts such as fine aluminum wire as well as large military aerospace parts; and medical, for surgical instruments and implants, to name just a few.
In addition, several industries have certain standards that anodizers should ideally adhere to such as the American Architectural Manufacturers Association (AAMA) standard 611-98, for anodized architectural aluminum.
Anodizers - Extrude-A-TrimAnodizers can use several different anodizing processes, ranging from the common to the experimental and obscure. The main difference between many of these processes is the type of acidic solution that is used. The two main types of acids used are chromic acid and sulfuric acid. Chromic acid refers to the H2 CrO4, which is an oxidizing acid family that the Environmental Protection Agency has placed restrictions on. The uses of certain types of this acid have been classified as a human carcinogen.
While emissions resulting from sulfuric acid, which refers to a strong mineral acid that is very similar to chromic acid, are also restricted by the EPA, it is considered less dangerous than the emission of chromic acid. However, there are some new developments in chromic acid that are much more environmentally-friendly. Additional acidic solutions used by anodizers include citric acid, phosphoric acid, boric acid and organic acids.
The two main types of anodizing processes that anodizers use are bath anodizing and anodic painting, although bath anodizing is more common in industrial applications. In bath anodizing the metal is fully immersed in the acidic solution, while in anodic painting the metal ferrule of a paint brush is dipped in the acidic solution and then used to apply it to the metal. As a result, anodizers typically use bath anodizing for mass production and anodic painting for smaller projects.
