paint info needed, what is the best primer to use Options

[freezing14]

i am finaly done fixing the swiss cheeze on the car , it is all gone, i will be soda blasting the car within a couple of days and i will be putting the primer on myself to be able to do the most of the body work myself and i have looked into the different primer and now i am confused?? (IMG:style_emoticons/default/huh.gif) (IMG:style_emoticons/default/blink.gif) (IMG:style_emoticons/default/headbang.gif) (IMG:style_emoticons/default/headbang.gif) i will be using the omni line of paint from PPG and there is a couple of different primer--
the epoxy etch, but it contains chrome ( very toxic) so reject as i have a home made paint booth
the regular epoxy but apparently it is not sandable ( wtf it means)
then there is the high build 1K no epoxy ??
then the high build 2K epoxy

the car is strait and very little pitting on the outside i had to joint the quater panel half way and i did a couple of patch but they are but weld so very little bondo

what is the best price versus quality way to do??

I know i have to primer, putty, primer and then paint , which one should I use for which

thanks you very much for your help

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[djm914-6]

I too am only going by what I read and what I've seen on my car. I've heard that products such as bondo allow in moisture and promote rust. Applying body filler over primer keeps the metal sealed. My car looks worse now than before I tryed to cover up the bad parts.