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topic 1165

Aluminum Substrate Corrosion Problem


We have a customer who has an aluminum substrate that is exposed to a 50% Trifloroacetel Acid and 50% Methanol Alcohol environment.

Anodizing was not a satisfactory finish for this environment. We would appreciate information for a finish that would be impervious to these chemicals.

The parts would be exposed to a splashing effect rather than an immersion effect.

Thanks for your help

Joe Hillock
anodizing shop - Philadelphia, Pennsylvania


Two part polyesters work well for most acid environments. There are very probably a few powder coat formulations that would work well also.

James Watts
- Navarre, Florida

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