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The efficiency of various treatments in protecting wood surfaces against weathering

L’efficacité de différents tratiements pour la protection des surfaces de bois contre les intempéries

Die Effektivität verschiedener Holzschutzanstriche

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Surface Coatings International Part B: Coatings Transactions

Summaries

Wood exposed to the outdoors undergoes photo-oxidative degradation in a natural weathering process.

The efficacy of various treatments for the protection of wood surfaces from weathering elements (ultraviolet radiation and water) was investigated by using the measurements of the changes in adhesion on fir and oak samples after their exposure to natural climatic conditions and after accelerated weathering.

The most efficacious of the six UV-protective treatments proved to be the treatment of the wood surfaces with a semi-transparent stain, followed by treatments with a transparent wood stain containing two types of photostabilisers. The stabilisation of the wood surfaces by ferric nitrate did not improve the performance of the wood stain used.

Résumé

Le bois qui est exposé aux intempéries subit une dégradation photooxidative dans le cadre d’un processus de dégradation naturelle.

L’efficacité de différents traitements pour la protection des surfaces de bois contre les éléments de dégradation (rayons ultraviolets et eau) est investiguée en effectuant des mesures des changements de l’adhésion sur des échantillons de chêne et de sapin après leur exposition aux intempéries naturelles et après avoir subi un processus de dégradation accélérée.

Il est noté que le plus efficace des six traitements protecteur contre les rayons UV s’avère d’être le traitement des surfaces de bois par une teinture demi-transparente suivi d’une teinture de bois transparente contenant deux genres de photostabilisants. La stabilisation de la surface des bois par le moyen de l’utilisation du nitrate ferrique n’améliore pas la performance de la teinture de bois utilisée.

Zusammenfassung

Holz, das der Witterung ausgesetzt ist, degeneriert normalerweise durch den Einfluß von UV-Licht und Wasser.

Wir untersuchten die Leistung verschiedener Schutzanstriche mittels Proben von Fichte und Eiche, die mit Schutzlacken beschichtet natürlichen und beschleunigten Witterungseinflüssen ausgesetzt wurden. Die Haftkraft der Schutzanstriche wurde während und nach den Tests bewertet.

Der beste der sechs Schutzanstriche in unserem Test war eine semi-transparente Lasur, gefolgt von einer transparenten Lasur die zwei verschiedene Fotostabilisatoren enthielt. Die Stabilisierung der Holzoberfläche mit Eiseenitrat verbesserte die Leistung der Lasur nicht.

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Authors and Affiliations

  1. Faculty of Forestry, University of Zagreb, Svetosimunska 25, 10 000, Zagreb, Croatia

    V Jirous-Rajkovic, A Bogner & D Radovan

Authors
  1. V Jirous-Rajkovic
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  2. A Bogner
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  3. D Radovan
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Correspondence to V Jirous-Rajkovic.

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Jirous-Rajkovic, V., Bogner, A. & Radovan, D. The efficiency of various treatments in protecting wood surfaces against weathering. Surface Coatings International Part B: Coatings Transactions 87, 15–19 (2004). https://doi.org/10.1007/BF02699559

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