Restore rotting or decayed wood with the Minwax 1-Pint High-Performance Wood Hardener. The liquid formula wood hardener can be used to repair woodwork, furniture, windowsills, doors, floors and decks. Liquid resin formula. For interior and exterior use on wood floors, decks, doors, windowsills and furniture. Resists shrinkage. Bristle brush application. 2-hour drying time. Acetone cleanup.