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9/1/2016 | 2 MINUTE READ

An Anodize Additive with No Cracks or Growth

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AlOxidize was developed by an electroplating shop for its customers, and the results have led the shop to offer the proprietary mixture to other shops around the country.

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AlOxidize was developed by an electroplating shop for its customers, and the results have led the shop to offer the proprietary mixture to other shops around the country.

Freedom Metal Finishing’s Keith Eidschun partnered with chemist Joshua Cloakey to come up with this new way to anodize aluminum that would eliminate growth during the coating process. Eidschun’s Clearwater, Florida, shop needed a way to better serve its customers, and he enlisted Cloakey’s help in developing AlOxidize.

Eidschun says that, when operated properly, the anodic coating produced will have a smooth surface with no micro-fractures and—within proper operating parameters—very limited dimensional change.

“The micro-fractures initiate corrosion resistance, and the smoothness provides abrasion resistance,” he said. “The coating pore structure readily accepts dye pigments and is optimal for color matching.”

Eidschun said the benefits of AlOxidize are that it accelerates coating formation, meaning coaters can achieve anodize results quickly. He says a typical anodize runs 30-45 minutes to achieve .0005 to .0008, but that his shop with AlOxidize is able to get about .0008 to .0012 in 12 minutes running the bath at constant voltage of 16 Volts.

“For thicker coatings, we get .0020 to .0025 using 20 volts for 20 minutes,” he says. “Processing times will vary just like most anodize, depending on how a line is set up. But it is extremely abrasion resistant; we can get Taber abrasion to pass testing with just .0004 of anodic coating.

AlOxidize also offers excellent corrosion resistance, Eidschun says.

“We have had another anodize company run our process and ran 5,000 hours in salt spray, and it still did not have failures,” he says.

The product is capable of low dimensional growth. Running the AlOxidize process with lower voltage, Eidschun says they have had many results of no dimensional growth, and they are still in the process of researching why that is.

AlOxidize readily accepts all color dyes, and hard coat can be processed from a Type II bath without having to change the temperature of the bath. The coating produced is an enhanced Mil-A-8625 Type II with properties of both Type II and Type III.

Eidschun is predictably excited to offer the product to other shops.

“This is some really great stuff for us, and the results we’ve seen validate everything that we have been saying this coating does,” he says. “AlOxidize process time versus regular anodize process time is the factor why I love this coating. We can do it so much faster and it gives a better coating; it just is a no-brainer.”

 

 

Analytical Specialties, Inc.  |  Clearwater, Florida

727-573-2464  |  asi-anodize.com

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