Chromic Acid Anodizing

Exploring the: Chromic Acid Anodizing Zone

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Published: 4/1/2017

What to Consider When Applying a Classic Black Finish
Q. What are the best options for a durable black finish? Uyemura's Rich DePoto answers that question.

Published: 11/3/2016

Anodizing: Corrosion on Hardcoat Anodized 7000 Series Forging
Q. I sent you photos of two parts that are alloy 7050 forgings. On these parts there are spots that appeared as a result of Type III (hardcoat) anodizing that were not present before anodizing. They look like corrosion of some sort, but the corrosio...

Published: 5/1/2011

Chromic Acid Anodize Failing Salt Spray Testing
We are performing salt spray testing on 2024 and 7075 alloy test panels that have been Type I (Chromic Acid) anodized. The test panels have been sealed in DI water at 96°C (205°F) for 25 min. The panels fail the salt spray test within 24 hr.

Published: 5/1/2010

What is the Correct Anodizing Specification?
My company fabricates aluminum and steel pedestrian bridge railing among other bridge parts. We recently got an aluminum railing job that called for “Type I” anodizing per MIL-A-8625. There was no anodic coating thickness called out. We are not anod...

Published: 2/1/2010

Dichromate Sealing and Fatigue Life
We are looking for some references that show that dichromate sealing restores the loss in fatigue life caused by hard anodizing aluminum alloys.