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A platform for research: civil engineering, architecture and urbanism
Performance of exterior coatings on spruce wood treated with a boron containing wood preservative
Exterior coatings may not provide sufficient protection of wood against biodeterioration. In order to minimize the decay risk, wood can be impregnated with biocides before finishing. However, pre-treatment of wood may have an effect on some important properties of surface coatings. Spruce wood specimens were impregnated with a new preservative formulation, containing the ester of boric acid with an alkanolamine. The aim of the research was to establish a possible influence of this biocide on performance of acrylic and alkyd stains on pre-treated wood. Drying characteristics, stackability, adhesion, and permeability of the coatings were studied. Performance of exterior coatings on spruce wood, treated with the alkanolamine - boric acid complex was different than on non-treated wood. Drying of coatings on impregnated wood was most likely changed because of boron diffusion into coating layers during the drying process. Slower drying resulted in stickier films. Adhesion of coating on pre-treated wood was not decreased, in one case even the increase was indicated. Permeability of a wood-coating system was also influenced by pre-treatment of wood with a new boron based biocide. The increase of permeability was more evident on the acrylic coating.
Performance of exterior coatings on spruce wood treated with a boron containing wood preservative
Exterior coatings may not provide sufficient protection of wood against biodeterioration. In order to minimize the decay risk, wood can be impregnated with biocides before finishing. However, pre-treatment of wood may have an effect on some important properties of surface coatings. Spruce wood specimens were impregnated with a new preservative formulation, containing the ester of boric acid with an alkanolamine. The aim of the research was to establish a possible influence of this biocide on performance of acrylic and alkyd stains on pre-treated wood. Drying characteristics, stackability, adhesion, and permeability of the coatings were studied. Performance of exterior coatings on spruce wood, treated with the alkanolamine - boric acid complex was different than on non-treated wood. Drying of coatings on impregnated wood was most likely changed because of boron diffusion into coating layers during the drying process. Slower drying resulted in stickier films. Adhesion of coating on pre-treated wood was not decreased, in one case even the increase was indicated. Permeability of a wood-coating system was also influenced by pre-treatment of wood with a new boron based biocide. The increase of permeability was more evident on the acrylic coating.
Performance of exterior coatings on spruce wood treated with a boron containing wood preservative
Dauerhaftigkeit von Beschichtungen auf Holz in der Außenanwendung nach Vorbehandlung mit borhaltigem Holzschutzmittel
Pavlic, M. (author) / Kricej, B. (author) / Tomazic, M. (author) / Petric, M. (author)
2002
13 Seiten, 11 Tabellen, 34 Quellen
Conference paper
English
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