J, the Parker paint I got from Cabelas, I used 1.5 quarts, for 2 coats on a 12foot, the Wagner is at HD for about 80 bucks, its worth it, there are several different kinds I had bought it to stain my decks ( I got several) The parker Data sheets says it can be sprayed with an HVLP sprayer , I just followed direction, there is a small cup , like a shot glass with a hole included, this is the thing you need to use the right mix of thinner, very easy and expained in details, look at the back pictures of the box for info. Parkers is thin out of the can, I probably added 5% spirits tops to get the 30 seconds time frame to empty the shot container, worked like a charm, I dont think this paint brushes on too easy, I might be wrong. I will touch up the railings with a small foam roller this aft, no brush stroke on my boat.... hope this helps