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Protecting aluminum against liquid de-icing agents

I am looking for surface treatment options on die cast aluminum parts for protection against liquid de-icing agents containing magnesium chloride. Also, are there any test methods for evaluating the surface treatment options?

Matt Byrne
materials engineer - Elyria, Ohio
December 1, 2010

Depending on the amount of chloride in the de-iceing solution I would recommend high phosphorous electroless nickel. Depending on the surface of the substrate 1 mil (25 ��m) coating would be a good starting point.

George Shahin
Atotech - Rock Hill, South Carolina
December 9, 2010

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