hey guys, I am going to be painting my 69 chevy pickup soon and have a few questions. I will be painting it a flat black to make it more unique of a classic and I just love the flat look. My question is how the prime works. I constantly hear self etching primer, epoxy primer, and primer filler? what are these used for? Am I suppose to use all three of them or what? Im not going for absolute show quality on my truck, just a paintjob to make it look better. But if you could please help me with my primer question.