Enamel, lacquer, urethane? Which paint?

[Grounded63]

Originally Posted by rbruno68

1. Sand to bare metal
2. Epoxy over bare metal and sanded OEM finish
3. Body filler work and sand
4. If I have break through, either splurge for VP2050 or respray with epoxy
5. Spray with 2k urethane
6. Top coat with a 2k enamel

Does that sound about right for exterior with blending into original paint?

At #4 if you went to vp2050. You would skip the respray of epoxy and the use of the 2k urethane primer/filler. If you resprayed epoxy you would top coat it with 2k urethane for build/fill.

On here you could also
Sand bare metal
Epoxy
Filler work
Sand/block
Rattle can self etch break throughs
2k primer directly over body work, epoxy, self etch
Sand/block
Straight to paint, or another round of 2K if more fill is needed.

This is more of a production type repair.

On higher end custom work, it is preferable to top coat/seal the filler work, with epoxy. Or you could switch to vp2050 after filler work. And eliminate the 2k prime and self etch.

Hopefully this is not adding extra confusion. In the OP it seemed like you were trying to avoid using more epoxy. But, not explaining why. There are many ways to get to the same place. Usually with the least amount of differing products is best/easiest. But, you have to work within specific product limitations and the existing substrate issues. You should definitely download all of the TDS for the all of the products you want to use. Generally with PPG/Shop Line TDS are very detailed for compatibility, prep, and usage.