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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[Mark Henry]

Before I went to just engines i used to do full resto's for a living.

IMHO PPG epoxy is the best base, and I've tried almost all of them. If you're blasting you must cover the bare metal ASAP, as rust will start to form in short order. Then the rest is choice, Marhyde 2K works good as a sanding primer and it about the cheapest. A lot of body guys use the fiberglass bondo over welds as it seals any pinholes, not the best method, but if you have done some rough welds then it does work.

I did my bug in all PPG and it lasted 13yrs, but most of the time I used dupont colours, just because I passed their store every day.

Prep is the total key to a good job.