Plasma pretreatment of wood modifies surface properties and can lead to increased wettability or hydrophobicity. These modified properties can lead to improved coatings adhesion. The present work examines the performance of selected coatings on wood pretreated with plasmas in a field test. After 31 mo of exposure in coastal British Columbia, a semitransparent film-forming fmish was less degraded and exhibited lower levels of mold or blue stain on plasma-pretreated samples than on untreated controls. This suggests that plasma treatment of wood prior to coating could lead to improved coatings performance and resistance to mold or blue stain.
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