Abstract
Influence of UV radiation on the color of furfurylated wood protected with refining coatings. Furfurylation is a method of chemical modification of wood, with significant effects on its strength parameters, resistance to degradation and color. The purpose of this study was to evaluate the color changes of furfurylated wood under UV radiation in an accelerated aging test. The wood was refined with selected protection agents -polyurethane varnish, linseed oil and wax; in addition, the stabilizing agent Tinuvin 292 was used as an additive to the wax and polyurethane varnish. The most favorable results in terms of UV light protection of furfurylated wood were obtained with polyurethane varnish, while among the two natural coatings, linseed oil showed significantly more favorable properties than wax. The UV light stabilizing agent was much more effective in protecting the color of unmodified wood than furfurylated wood.
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