Bondo Wood FillerRebuilds and restores rotted wood, windowsils, fascia boards, siding, posts, decks, cabinets, shutters and steps. Replaces missing pieces on antiques, doors, columns and tables. Once dried, it can be sanded, shaped, planed, drilled, routed or sawed, just like the wood it replaces. This product is formulated to accept stain and paint more naturally than most wood fill products. For rotted wood problems, use after applying Rotten Wood Stabilizer.