High variability in reported results! In my case, I bought a quart of red as a test run. I brushed a couple thin coats onto wood, sanding between to level out. I used the paint from the can for the first try and, as I recall, a little Xylene on the second try. (I sanded off the first coat and redid, but not strictly fault of the paint.) I liked it better with a little thinner to encourage flow-out. In both case, I focussed on laying a thin but even coat. It dried well overnight, but feels a bit soft. I suspect it is like my favorite (but now rather expensive) Petit Hobbypoxy that it will take a month to get fully hard. Reflecting on other reviews' success and failure, I am guessing film thickness is playing into how well it hardens.

Didn't need extra quart. The gallon covered completely.

This paint is Awesome! It goes on smooth and easy, it's very durable, and the price is pretty cheap! I haven't found paint like this anywhere else, the closest I found was a lot more expensive.