[transmaro93]

well are you using actual exterior finishing paints made to shoot out of a gun or are you using shaker can... a base clear system out of a spray gun will always work better than shaker cans due tot hem using hardners where shaker cans are very thinned out and dont have an activator(hardner) in them. powder coating is always the toughest but can be more expensive. a real base clear finish or single stage finish will hold up pretty decent but will be prone to more chipping than podercoating but chips can always be touched up