i am planning to paint my center caps. should i use regular spray paint or hi-temp spray paint? do they make clear coat spray paint that i can spray on the top layer after everything dries?

 

In my opinion Hi-Temp is not required. Yes, clear coat in a spray is available.

 

if i use regular spray paint, should i use a clear coat on top of that?? what about if i use hi-temp paint or regular auto paint? and i'm also planning to but a "H" decal on the center cap after i paint them, should i spray the clear coat on the decal too??