I came across this new corrosion-resistant coating for aluminum:

http://www.automation.com/content/nsd-tuph-from-nord-for-cost-efficient-
hygienic-drive-solutions

Gene Kahn


Sounds like anodize :)

Paul Lamar

All,

I work at an aerospace supplier company.  We design, build and do certification tests
on components such as spoilers, ailerons, flaps etc.  One of the fittings on one of
the components failed consistently in the same place.  Under electron microscope
inspection it was discovered that the crack started from a microscopic pit that forms
when aluminum parts are anodized.  Our Damage Tolerance specialist said that the
solution is to increase the radius on the outside edge of the part (actually remove
material) and also alodine and prime - NO ANODIZE!  For extra protection and expense,
shot peening will also help.

For what it's worth,

Norm DeBoer




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