Spraypaint help

Don't "Burst," spray on the case. Just go in a continuous spray at much as possible to avoid droplets from forming.
Buy a narrow tip if you want to add a thicker coat.

At least 5 layers is recommended.
I'd recommend a Belton High Pressure Molotow SprayCan. Good capacity and very nice layer coverage. Reliable and Efficient compared to your usual spraycan.
Cheap, unless you can find another website, but the price isn't a problem at all.
http://www.bombingscience.com/spraypaint...sure+400ml



Or if you want to play it safe, and not worry about creating drips through your sprays.
A low pressured one, but the layer coverage is noticably less. So you might wanna spray "More Layers."
http://www.bombingscience.com/molotow-pr...400ml.html



Though this might be in concern if your case has a certain coating on the metal to run down "Liquid."



Tips Covered.
SandPaper or Fine? No, just directly do it.
Regular Paint? **** no. That screams out "Not Going to Work."