No debate on the prep work on any material for any coatings. Wet coatings are not a cure for poor prep work.

Ura type powders are far superior to any wet coatings. They will resist scratching and maintain their shine better than any wet coatings, the limiting factor in using powders is the fact we must place them in a 400+ degree heat to cure the powder. Many items can not with stand that heat, linseed oil treated tubing being one of them heat treated aluminum being another. ( and there are others)