[All American Racer]

Mosport, plastic media will not hurt magnesium wheels in any way. I do this several times a month. The thing you must do is make sure the media is not contaminated. We keep a padlock on our blaster to make sure people don't try putting their grills and other nasty things in there. When I'm through blasting I blow off the excess dust, wash them in a alchohol bath and blow them off again. Marc