The reason I'm asking about this is bc the job I'm doing is a little different tgan what I'm accostomed and bc it's different, my thinking was I may need a different primer than those mentioned, but not sure. I'm painting on a chrome surface (a Schwinn Jaguar chainguard). So far I taped off the area to be sanded, I have sanded the area of the guard to be painted, and I'm planning to spray can a light coat of auto etching primer...then I wanted to go with a light coat of a catalyzed high fill auto primer. Perhaps those mentioned could work well but I'm kind of leaning toward a durable filler primer.