My Dart Swinger Project!
Anything metal like that I've always handled with rubber gloves to keep my hand oils off of it but before I paint it I always spray it down heavily with a carb cleaner or brake cleaner. It seems to eat away any oils and dries really fast. I love getting that stuff from Walmart for a dollar 98 a can. I spend a whole 12 bucks and get 6 cans at a time so I can just blast that stuff as I need it...