Improved Chromic Acid Anodize Seal for Optimum Paint Adhesion

820603

02/01/1982

Event
Annual Aerospace/Airline Plating and Metal Finishing Forum and Exposition
Authors Abstract
Content
A new anodize sealing process using a dilute solution of chromic acid and metal chromates in deionized water has been developed. Use of this process to seal chromic acid anodize layers gives films that have excellent paint adhesion while maintaining specification requirements for salt-spray corrosion resistance. The extent of hydration is easier to control than with conventional sealing methods and does not require monitoring. Extensive laboratory testing has defined optimum operating parameters. Examination of sealed films using scanning/transmission electron microscopy has elucidated the anodize film structures controlling paint adhesion and corrosion resistance.
Meta TagsDetails
DOI
https://doi.org/10.4271/820603
Pages
9
Citation
Moji, Y., "Improved Chromic Acid Anodize Seal for Optimum Paint Adhesion," SAE Technical Paper 820603, 1982, https://doi.org/10.4271/820603.
Additional Details
Publisher
Published
Feb 1, 1982
Product Code
820603
Content Type
Technical Paper
Language
English