Is it black? If so, before the painting solution, maybe try Forever Black or Back to Black by Mothers. Just a thought as these products worked great on my faded out fenders on my 2004 TJ. Made the black look like new.
If you do decide to paint, preparation is key. Complete wash and dry, and wipe down with alcohol to remove any residual oils or grease. My concern in using spray paint, is that it may look blotchy and uneven. A body shop would probably do a perfect job with a semi gloss.
2009 JK Wrangler X, Hard & Soft Tops, Detonator Yellow
Pioneer BT-3300, Polk Audio DB Speakers, Ipod Cable
Mopar Grab Handles, Mopar Slush Mats, Viper 5902,
Wet Okoles, KC Hi-Lites Aux lamps, Cargo Mat,
Safari Doors, Bestop Duster, Windjammer, and Bikini Top.