A clear solution of 20% Disodium octaborate tetrahydrate in propylene glycol. It is designed for use as a surface treatment in-situ building material to eradicate fungal attack and preserve against attack from both fungus and wood boring insects. It penetrates 3-5mm into the wood and establishes a reserve from where further penetration takes place. Penetration rates may vary faster or slower depending to moisture content.

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