Minwax 1 pt. High-Performance Wood Hardener

Minwax 1 pt. High-Performance Wood Hardener is a quick-drying liquid formulated to strengthen and reinforce decayed or rotting wood. It penetrates deep into weakened wood fibers, where specialized resins bind and fortify them to create a rock-hard, solid base. Suitable for both interior and exterior use, this wood hardener seals rotted wood against future moisture penetration. It provides reliable surface preparation for doors, decks, floors, furniture, woodwork, and window sills prior to applying wood filler.