Hard Anodizing Companies

IQS Directory provides a comprehensive list of hard anodizing companies and suppliers. Use our website to review and source top hard anodizing companies with roll over ads and detailed product descriptions. Find hard anodizing companies that can design and provide hard anodizing services to your companies specifications. Then contact the hard anodizing companies through our quick and easy request for quote form. Website links, company profile, locations, phone, product videos and product information is provided for each company. Access customer reviews and keep up to date with product new articles. Whether you are looking for companies of hard anodizing aluminum, hard anodizing process, hard anodizing equipment or customized hard anodizing of every type, this is the resource for you.

  • Green Bay, WI 920-857-9701

    Green Bay Anodizing has grown into an award-winning metal finishing service since our humble beginning in 2007. We offer finishing options like Optical black, salt spray tests, chromate conversion, sulfuric anodizing, hard coat anodizing, and even blasting services for your aluminum projects. We are known throughout the industry for our exemplary customer service and rapid turnaround times.

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  • Columbus, OH 614-252-0078

    Mills Metal Finishing is run by professional experts in all things metal. This includes metal plating, coating, and even finishing services around the Columbus area. With over 30 years of experience, our experts are dedicated to providing the highest standards in the industry. So whether it's electroless nickel plating or aluminum anodizing, you can rely on us to provide you with the highest quality product at competitive prices.

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  • Green Bay, WI 877-721-1100

    Pioneer offers many custom finishing solutions to make your products perform at the highest levels. We are experts in providing specialized finishes to improve the performance for your specific component parts. Whether your product design requirements include finishes to make your product resist corrosion, last longer, look better, slide more freely, bond securely to another material, or many other performance attributes, Pioneer has you covered. Call us today for more information!

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  • Chavies, KY, Chatham, ON 877-556-9191

    We are the leading suppliers of extruded, fabricated/machined and anodized aluminum components and assemblies to various markets. Hard anodizing process conditions have been done to achieve a harder, thicker, denser film which resists the wear, corrosion, temperature effects etc. Contact us for the highest quality extruded aluminum components along with outstanding customer service.

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Hard Anodizing Industry Information

Hard Anodizing

Hard anodizing is a variant of anodizing. It produces similar results to standard anodized surfaces, but it's thicker and denser hard anodic film limits the coloring results to dark tones.

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Applications of Hard Anodizing

Hard anodizing is used by many industries for a variety of applications. The automotive industry often uses the process to create internal car parts that will be non-conductive and heat resistant. Cookware used by industrial food processing plants or bakeries are often hard anodized, again because of the thickness and strength that is its trademark.

Additionally, Teflon, which is a non-stick element popular in cookware, adheres to hard anodized metal better than it does to others. Because blood can be so corrosive of metal parts, the medical field commonly uses products put through the hard anodization process for its prosthetic joints and limbs. Another reason this type of metal is preferred is because of its appearance.

Benefits of Using Hard Anodizing

Unlike the regular process of sulfuric acid anodizing, hard anodizing involves a special electrolysis process that creates a thick layer of aluminum oxide both on and in the surface. This process protects metals and alloys from deterioration, which is why depending on the application it is intended for, this process is preferred. The sulfuric method of anodizing involves a vat of sulfuric acid that a metal is dipped into while an electrical current is being sent through the vat. The combination of the acid bath and the electrical current is what changes the body chemistry of the metal.

Hard anodizing simply cools the acid to the temperature of freezing water and significantly increases the electrical current running through the acid. This process is usually utilized with aluminum. The process is easier than using regular anodizing treatments on tougher metals, costs less, and produces a metal that is tough but lightweight. Hard anodizing allows the positive characteristics of aluminum to be utilized. These characteristics include low density, exceptional thermal conductivity, electrical resistance, and good pliability.

Hard anodized aluminum is also less porous than aluminum anodized by sulfuric acid. Aesthetically, it is a smoother and sleeker end product that is more pleasing to the eye. The colors cannot be as bright and vibrant, though, because the pore size of the surface will not support them. Therefore, dark brown and black shades are most common, although darker shades of other colors can also be created.

Hard Anodizing Informational Video