Swall, When I was in the powder coat industry, the typical aluminum cleaning process was as follows: remove any grease with solvent based cleaner (MEK), remove any coatings with media blasting (thin components may recieve alternative method), outgas cast aluminum at 225°F for 45min, degrease...
Assume a 356-T6 for cast wheels, and 6061-T6 for forged wheels, is it possible to age past these tempers? Is there a spec. or reference that shows this?
I've heard rumors of aluminum wheels failing (cracking) after being powder coated. I've heard cases of both cast and forged wheels failing. Unfortunately I do not have any alloy details. According to AMS-H-6088(SAE specification for the Heat Treatment of Aluminum Alloys) most alloys will not...