I need some help this is on my last nerve
 

K well im painting the center part of the water fall flat black and it seems like every time i paint the door or put a coat on it..it look totally uneven like u can see where the can decided to spray more or i stopped and started spraying in the other direction..i go to clean it for the next coat and all the part that look uneven wipe off but it looks kinda glossy. WHAT IS THE PROBLEM i am having i shake the can up and down for a decent 5 minutes i have wetssanded over and over again with 800 grit and 400. it just doesnt seem to look write. I am using dupli color with the airbrush nozel..i didnt pick it because of that. i had an older can of the same paint and i had enough to finish the water fall but not the door and it came out perfect. i let the door dry for a day and i still have this problem...HELP

cmon any help???

Well, you can use a paint gun. Rattle Cans do not deliver the most even spray.

If that is not an option, then I would say to make sure that you are spraying from about 12" away from the part with an even motion (Your arm should be moving along the length of the part, you should not rotate your wrist).

Also, you should start spraying off of the part and only start applying paint to the part after the button is depressed and paint is hitting the masked surface on either side of the part. (Do not start or stop spraying while over the part, this will cause the paint to be uneven where you started or stopped).