Revista Chapingo Serie Ciencias Forestales y del Ambiente
Universidad Autónoma Chapingo
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Revista Chapingo Serie Ciencias Forestales y del Ambiente
Volume VIII, issue 1, January - June 2002
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VIDA ÚTIL DE DOS BARNICES PARA EXTERIORES MEDIANTE INTEMPERISMO ARTIFICIAL EN MADERA DE AILE, PINO Y ENCINO
SERVICE LIFE OF TWO VARNISHES FOR OUTDOOR USE ON ALDER, PINE AND OAK WOOD UNDER ARTIFICIAL WEATHERING

Juan C. Tamarit-Urias; Amparo Borja-de la Rosa; R. Flores-Velázquez; Alejandro Corona-Ambriz

http://dx.doi.org/1111

Received: 2002-10-18

Accepted: 2003-02-10

Available online: / pages.83-90

 

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  • descriptionAbstract

    The main function of any wood finish for outdoors is to protect the wood surface from weathering processes, as well as to maintain its appearance. Weathering brings about surface deterioration, and therefore, it directly affects finish performance. The objective of this study was to determine the finish service life of two commercial polyurethane varnishes for outdoors (Polyform® 11000 and 7000) on alder (Alnus firmifolia Fernald), pine (Pinus patula Schl. et Cham.) and oak (Quercus insignis Mart. et Gal.) by means of accelerated weathering on a CTBA degradation wheel. Failure data in appearance and in adhesion were fitted to a Weibull accumulative distribution to estimate the finish service life. According to the obtained results, service life on alder, pine and oak wood was 5.0, 5.2 and 5.0 years, respectively, for varnish 11000, and 3.7, 3.4 and 4.9 years, respectively, for varnish 7000.

    Keyworks: accelerated weathering, finishing for outdoors, service life.
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  • starCite article

    Tamarit-Urias, J. C.,  Borja-de la Rosa, A., Flores-Velázquez, R., &  Corona-Ambriz, A. (2002).  SERVICE LIFE OF TWO VARNISHES FOR OUTDOOR USE ON ALDER, PINE AND OAK WOOD UNDER ARTIFICIAL WEATHERING . Revista Chapingo Serie Ciencias Forestales y del Ambiente, VIII(1), 83-90. http://dx.doi.org/1111