Radial power,
To answer you question it would have depended on if they were left in a natural aluminum finish or if they were painted in a Camoflauge color scheme. If left in a natural finish then no the zinc chromate would not get covered over.
But if they got painted then yes the zinc chromate would get painted over. Your two pictures from your previous post show just that. As the left hand picture is a natural metal surface and the right hand picture has been painted with a silver/Aluminum color paint.