now i remeber going over this with barry k a couple years ago and i remember him saying there were distinct differences. dont remember exactly what they were except that polyurethanes are more chemical resistant and more flexible. hopefully he will pop in here and remind me of our conversation.
kenseth17: thats funny about the buffing. i usually see just the opposite. most urethanes i see say to buff within a few days and poly's within 30 or so.