A non-etch low alkalinity (pH 9) powdered cleaner for aluminum. This heavy duty non-silicated cleaner tolerates heavy loading and is excellent for removal of buffing compounds and oils. Water conditioners help reduce scale and sludging. Defoamers allow the use of air agitation. The cleaner is operated at 2 to 8 oz/gal at 120°F to 180°F for 2 to 15 minutes.