Minwax® High Performance Wood Hardener

Minwax® High Performance Wood Hardener is a quick drying liquid formulated to strengthen and reinforce decayed or rotting wood.


  • The hardener penetrates deep into the wood and its special resin binds and reinforces the decayed wood fibers
  • High Performance Wood Hardener seals from further moisture penetration and hardens to a rock hard solid base for lifting
  • Designed to strengthen wood fibers of interior or exterior rotted wood prior to the application of Minwax® High Performance Wood Filler

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