Hello all.. most of you may not know me, but i have posted a build or two here!! i work in a body shop and have for years, and i agree with mr. Obessive on the primer issue!! now, i have seen alot of really nice paint jobs come from using no primer/base, but it seems that in more cases then not, when you use a primer you dont have as many problems in the end!! i have only been building for 2 1/2 years but i havent had one problem when i prime and let it dry for a day or 2!! i use plasti-kote sandable primer spray can T-235 from walmart!!! 4.95 a can and it is a big can, i can get alot of models with one can!!! the big thing here is washing the bare parts good before priming as well,!! i use dawn dish washing soap or the hand soap out of the dispenser here at the shop then let air dry!! honestly just like on a real car the prep work is key to a good paint job, so was between sanding and repriming as well with a toothbrush to get all the little grooves and that!! i prime all of my parts first then do my painting (engine,interior, suspension) and so on!! but i also use automotive paint urethane paints base coat/clear coat system that is used on real cars, and the clears have a activator as well as a reducer in it, which will make it "HOT" so to speak, the primer also helps with the alclades and such!! my point being is that for 5.00 a can its worth the insurance of knowing that i wont have to worry about the paint doing something crazy!!! here are a few of my paint jobs!!