Denny, that seems odd that TCP is calling the paint Polyurethane acrylic enamel. The convention is either urethane or acrylic enamel. Sort of makes me believe the TCP product is really a urethane paint, but not certain.
I am just now getting back into painting since I am restoring the truck. Back in my younger years, I painted with non-catylized enamel and it seemed ok because that was all I knew. I recently had to do a repair to a trunk lid on an old BMW that I remember painting waaay back. The paint checked on the deck lid for some reason. Trying to sand the paint off was a dissaster as the paint just gummed up with the fiction heat. No way 2k paints now-a-days are doing that whether acrylic enamel or urethane. So, either one is fine, but conventional wisdom says urethane is more durable.
