paint them.
i painted my saw blades with that duplicrap paint and it chipped and what not even after stripping the wheels sanding and clear coating

i recently painted my Konig Monsoons with black engine enamel and they came out great...i left the cent cap silver and it looks good... *see sig*

 

Yeah Duplicolor sells the worse spray paint I've ever seen. And trust me, LOL with the amount of times I painted my grille with that stuff I can't believe I still buy it. At first I thought it was because of my own inexperience and that I did something wrong sanding the grille or prepping but it was because of the paint reacting with each other.