quote"Live near an ocean and one would sing a different tune about no-ox.... Without it AL turns into a block of chalk over time."

Yep, I agree whole heartedly. The windward sides of the Island I live on get salt air that is like fog some days. It does havoc on terminations that have no antioxidant, or at least no recent applications of anti oxidant. Aluminimum screen frames are equally subjected to the yellow grundge oxidation factor.