Acrylic enamel is easy to use for the novice, like me. Urethane is tough, no doubt, but toxic as @#%&!, if you don't have the proper fresh air suit, etc. I used to sell Dupont, and if you ever read the labels (Nobody ever does, right???,) it will scare the heck out of you. Whatever you do, use proper respirator and clothing, etc. It is not worth the risk.
