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    Author(s): R. Sam Williams; Peter Sotos; William Feist
    Date: 1999
    Source: Journal of coatings technology. Vol. 71, no. 895 (Aug. 1999).:p. 97-102 : ill.
    Publication Series: Miscellaneous Publication
    PDF: View PDF  (151 KB)

    Description

    Alkyd-, oil-modified-latex-, and latex-based finishes were applied to severely weathered western redcedar and redwood boards that did not have any surface treatment to ameliorate the weathered surface prior to painting. Six finishes were evaluated annually for 11 years for cracking, flaking, erosion, mildew growth, discoloration, and general appearance. Low-solids- content latex finishes that contained about 10% raw linseed oil and 11% acrylic resin (i.e., the oil-modified latex finishes) performed better on badly weathered wood than did the alkyd and the other latex finish, even after 11 years. Latex finishes that contained raw linseed oil probably stabilized the weathered surface and plasticized the finish. The stabilization of the wood surface and the flexibility of the finish throughout its service life are the important factors in finish performance on these weathered substrates.

    Publication Notes

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    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Williams, R. Sam.; Sotos, Peter.; Feist, William. 1999. Evaluation of several finishes on severely weathered wood. Journal of coatings technology. Vol. 71, no. 895 (Aug. 1999).:p. 97-102 : ill.

    Keywords

    Thuja plicata, Sequoia sempervirens, Finishes, Weathering, Paints, Protective coatings, Sanding, Service life

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https://www.fs.usda.gov/treesearch/pubs/5986