A two-step wood protection process using alternative wood protection agents in combination with an oil treatment
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In this study, natural polymers were tested as possible alternatives for conventional wood preservative in a two-step process. Scots pine sapwood blocks were impregnated with chitosan, tannin, propiconazole and Wolmanit and oil-treated afterwards with a modified linseed oil. Two different fixation parameters were performed. The treated samples were leached according to EN84. The outcome of trials shows that a two-step process reduces the leaching of the main active components. After leaching, the samples were exposed to fungal attack by Coniophora puteana and Trametes versicolor according to EN113. Mycological tests showed that most of oil treated samples were effective against wood decay.