Paints like Easypoxy and Brightside work best with fairly thin layers and generally two coats will do it (three if you want to sand and polish it). One quart of Easypoxy should easily put two coats on a 16' canoe with quite a bit to spare, depending on your application technique. With a thin-film method like rolling and tipping, I wouldn't be surprised to get four coats out of a quart and you could probably get three with a brush if you work carefully. There is nothing to be gained by applying a really thick buildup of paint layers with these modern, modified enamels. Do not be surprised if the first coat looks like crap (thin spots, streaks, etc.) as this is quite common, especially if the color is substantially different from the base you're painting on. The second coat will look drastically better (scotchbrite or fine sanding between coats is well worth the effort). Drips, runs and sags are a function of having too much paint on the surface and it being uneven in thickness, so keep the layers thin and don't worry much about the color being even until you have a couple of coats on.
