I used the duplicolor stuff and was not impressed , First off the first two cans were partially cured in the cans, had to take them back, probly cuz nobody buys the stuff and it sits on the shelf forever. Secondly I used 5 gallons to coat the top and bottom of my new fiberglass tub and the inside of the tailgate (steel) and the stuff is not that durable Its been on there since march so dry time is not an issue ,if you drag anything heavy across it it scatches pretty easy,ie drivers seat track before it was bolted in, Herculiner is better linex is the best but its pricey ...my2cents