A Portland cement based patching product that can be used on wood, concrete, plaster, ceramic tile, masonry, brick, drywall, paneling, metal, and stucco. Use indoors or outdoors. Dries in 15 minutes, won't shrink or crack, can be nailed, screwed, stained, or painted. Can be applied from a featheredge to inches thick. When used as a skim coat 1 Lb. covers approximately 28 Sq. Ft. of surface space. Kit contains everything you need: Powder, trowel, measuring cup, and mixing container. Just add water.