quick buffing question

I have used model spray paint on all my models in the past without using clear coat. They of course dont have the shine i've seen on most of these models. can i still buff or wax these to make them shine more? or get the orange peel out? thanks for any help

What kind of paint was used?

I have looked at those tuts before but they never said what paints you can and cant buff.

I cant honestly remember the exact paint used. I am not near my models. I will c if my gf can run to my house sometime and check. All i remember is i got em at walmart/hobby lobby and they WERENT clear coated. They all have pretty nice finishes but not realistic like some i've seen on here.