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Anodizing by Current Density vs. by Voltage
Can you detail the procedure for anodizing using the current density method as opposed to constant voltage?
Ask an Expert Published: 1/19/2015
Sulfuric Acid Anodizing Bath Makeup
Can you explain the ratio of acid in the anodizing bath and whether it is calculated by volume or by weight?
Ask an Expert Published: 1/19/2015
Adhesion of Applied Organic Coatings
Our expert addresses an amalgamation of many different questions from folks who are baffled and frustrated by this adhesion problem on their anodized parts.
Ask an Expert Published: 5/8/2014
Sealing Parts After Two Months
Is it possible and practical to seal hardcoat anodized (Type III) parts that have been in storage for about two months?
Ask an Expert Published: 4/29/2013
Critical Holes Out of Tolerance
The aerospace detail parts we send out for anodizing are often coated with a chemical film (Alodine) to aid in the application of masking. When the Alodine is dissolved before anodizing, the precise diameters of holes are often eroded oversize, whic...
Ask an Expert Published: 1/28/2013
Anodizing: Current Density vs. Voltage
Can you detail the procedure for anodizing using the current density method? What are the quality advantages for us to completely change our processing technique?
Ask an Expert Published: 10/24/2012
Titrating Sulfuric Acid Anodizing Baths
Do you have a recommended analytical method to determine the sulfuric and aluminum concentrations in sulfuric anodizing solutions?
Ask an Expert Published: 8/6/2012
Alkaline Etching
What should be the maximum aluminum content in alkaline etching to avoid galvanized appearance (also known as spangling) in anodized (type II, natural, 10u) 6063 T6 extrusions? Do you think complexed aluminum helps to attain micrograin matte finishe...
Ask an Expert Published: 5/1/2012
Is it Anodized or Not?
What would be the best way to indicate whether or not an aluminum part has been electro-polished and anodized?
Ask an Expert Published: 2/1/2012
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.
Ask an Expert Published: 5/1/2011

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