I used K38 on my Town Sedan, its the high build version of K36 and probably higher priced. I don't believe either is epoxy, only the DP stuff is epoxy. I had no trouble filling 80 grit scratches with 2 coats of K38. I hear the evercoat stuff is good too on other forums but not sure about compatibility. My total system was DP epoxy over bare metal, K38 over the DP, NCS sealer over the k38, then BC/CC, all PPG. Just finished on monday, will color sand this weekend. Looks like this...
First car I ever painted BTW.
Bob NJ