That sounds like the best way. I'll save the etch primer for something else and pick up some epoxy primer and do it right. Thanks again.
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Thanks for all the replies. I went down to the local Napa auto parts store today and asked him. I mentioned that I heard different opinions on the subject and he started laughing and said that's a good way to get a argument started. I'll go with two coats etch primer and filler, two more regular primer coats and then final coats. Thanks again.
To each his own, but I would never put filler over etch primer. Lots of polyester fillers can have a bad reaction with the acid in etch primer. This may not show up right away but a few months down the road. Loss of adhesion, bubbling, etc. Only put filler over properly prepared bare steel or better yet over properly prepared epoxy primer.
If it is a car you care about, please use a good epoxy. I am an auto body teacher and have used just about every method available.
Here is what it boils down to:
Collision shops: Love etch primer because it is fast and has been used forever. They are not too worried about a paint job lasting 20 years. Epoxy is too slow for the fast paced collision business even though it is a superior product.
Restoration Shops: Love epoxy primer because it the best primer bar none. It takes a little while to cure but it has better adhesion, IS NOT POROUS, and filler absolutely loves to stick to curing epoxy. Spraying epoxy again over filler completely seals it in.
The thing about body filler is it is like a sponge, and if you use it on bare steel there is a very good chance that it will suck some moisture and start the rust bug again. This will happen right through etch primer.
Like I said, it boils down to you and what kind of job you want to do.
If anyone has any questions please ask- I will be happy to answer anything I can.
