How many coats do you give it and how easy is it to sand??

======I usually end up with probably 3 coats. I had read about using this before, but was afraid to try it until I talked to a guy in our club who is an outstanding builder. He told me about it and sold me on the stuff. I'm using 3/4oz cloth. Basically you just lay on the cloth and brush on the poly to adhere the cloth to the structure. In the case of a rudder, you would do one side, let it dry and sand off the glass overhang around the edges, then do the other side. After a piece is done, it can be lightly sanded to get off any bumps, then add additional coats of poly to suit. I may hold back a little on the rear of the fuse, such as the underside of the stab, just for weight considerations. The poly sands really good.
Anyway, I then put on a thin coat of primer to show what needs filling, then add panel line tape if you're going to, then more primer. I remove the panel line tape before the color coat goes on.
I primed with Advance Auto "Plasti Cote" automotive primer. Actually, you can probably lay off the coats of poly and go for more primer coats if you wanted.
So far this evening, I've glassed the bottom of the B-24 wing, nacelles, rudders, elevators, flaps, horizontal stab, and am waiting for them to dry. I'll go back in about half hour and do the other sides.
(if I have enough glass)
Randy