This No. 1 professional wood filler fills holes and cracks quickly, dries rapidly with no noticeable shrinkage, cracking, or crumbling. Can be used indoors or outdoors. The use of wood flour allows Famowood to be stained, painted, sawed, drilled, sanded, planed, and nailed like real wood. Customer can also rely on smooth spreading and even filling of any hole or crack. Used in furniture factories, cabinet shops, window and door factories, and by those desiring a fine finish to any wood project.