>2. I applied aeropoxy filler and sanded it to a smooth surface filling all >the surface, Then I sanded and refilled and sanded to a ready to paint >condition. >KRron ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Not throwing rocks at you Ron but I get the feeling that your process of "hard-shelling" is maybe the process that gave some builders problems. First off there is no need to have the foam surface smooth, just straight. I sanded my foam with wing walk material. Take two pieces of fiberglass and lay one on a piece of sandpaper with the grit side up and another on a painted surface. Can you tell what's under the glass cloth without looking. Your process requires you to "finish" two surfaces when only the top surface of the glass needs to be finished smooth for paint. As always, go with what makes you feel good and what works for you. Larry Flesner
