This product is a Water proofing membranethat can go over wood or concrete that has been primed with a polycoat primer, and must either be tiled over or have a uv resistant top coat applied over it. Polyglaze is the recommended top coat if you are not tiling over the membrane or are just looking for a nice finish for your surface. This product is a true self leveling membrane so it is not ideaql to be used to build up corners or float out low spots. It dries as flat and level as the deck or area was built. If you need to build up areas,low spots or puddling areas, recommend polycoat pc 550 with sand.