The aim of the research was to increase durability of wood treated with 3-Iodo-2-propynyl butylcarbamate (IPBC). The study used a blend of silanes. Biological examination against microfungi was performed to determine resistance of Scots pine wood treated with the tested formulations. Chemical analysis by the Electrospray Ionization Mass Spectrometry (ESI-MS) of water extracts from the leaching performed to assess the ability of silanes to stabilize of IPBC in wood. Through the use of methyltrimethoxysilane (MTMOS) and aminethyl-aminpropyl trimethoxysilane (AEAPTMOS) (1:1) increased stability of IPBC (0.05%) in wood subjected to leaching, thus increased its resistance to attack by microfungi.

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