: Has anyone ever tried to spray epoxy? I figure it will probably be a sticky
: mess on the ground and the gun will be garbage but I thought it might be a
: good way to apply the fill coats. Any thoughts?

Sound dangerous and pointless. You are putting nasty mist into the air that would require a very good safety system to combat. Brushing works just fine. Even if you have the appropriate safety gear, I don't think it would be worth the effort. You would be making the process more complicated than it need be. 10 minutes with a disposable brush and you are done.