[Addicted2Kouki]

I didnt realize that not liking spray painted bumpers was a reason for sucking at life.

Anyways.
IF you want it to look good with spray paint.. do the following.
-sand whatever you are spraying with 400.
-wet sand with 600.
-clean
-primer [if you want]
-spray thin coats of color until it covers to a uniform color.
-not necessary but makes it better, wetsand with 800
-spray clear coat spray paint..again thin layers.
-after a couple layers, wetsand with 1000.
-repeat
-repeat
-wetsand with 1500
-rub with rubbing compound.

the reason you have to repeat so many times is because spray paint goes on so thin.

to let you know... if you REALLY are DEADSET on spray painting... there are some stores that mix spray paint to OEM car colors, usually auto paint stores.