Minwax Wood Filler - Wood Repair & Wood Adhesive | Minwax Minwax High Performance Wood Filler is a two-part wood filler for filling gouges, holes and damaged areas in wood and acts as a wood adhesive. . Minwax High Performance Wood Filler permanently repairs damaged and rotted wood. . Recommended Uses: windowsills, doors, woodwork, floors, decks, furniture. Sand..