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

(IMG:style_emoticons/default/headbang.gif)

[TBrads914/6]

Old school: filler on metal (can't feather it out if applied over paint) New school: better products filler over primer OK. I'd go with the acid etch first if you plan on keeping the car for many years. Fillers cure buy the hardner that you add to them. Most novice add too much hardner and it don't mix well enough and then have to deal with pits when sanding. Or mix the hell out of it and get air in it. I've never baked filler and good fillers have little air and don't shrink. Besides, if you work the metal correctly, you should have a very thin coat to finish with. I know there are guys out there that mix products but I've seen some get burnt by it too (ever seen a clear coat peel of like plastic?). If your going to use PPG I'd stay with their system and go from primer all the way to clear coat. They have a good product and lots of custom colors and paints.