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    Author(s): Mark Mankowski; Mark J. Manning; Damien P. Slowik
    Date: 2015
    Source: In: Proceedings One hundred eleventh annual meeting of the American wood protection association, the Omni Grove Park Inn, Asheville North Carolina April 12-14, 2015 Volume 111; p 124-132;
    Publication Series: Paper (invited, offered, keynote)
    Station: Forest Products Laboratory
    PDF: View PDF  (469.0 KB)

    Description

    Manufacturers of wood plastic composites (WPCs) have recently introduced capped decking to their product lines. These new materials have begun to take market share from the previous generation of uncapped products that possessed a homogenous composition throughout the thickness of their cross-section. These capped offerings have been introduced with claims that the pure polymer cap provides protection to the wood/polymer interior, helps keep the composite core dry preventing water ingress and protects it from weathering and issues associated with biological degradation. This paper briefly reviews moisture absorption in WPCs and then focus on recent results from laboratory and field evaluations of capped WPC material. Preliminary results of these tests will be discussed in the context of durability of these products and provide some early insight as to the potential susceptibility of this new class of materials to biological degradation.

    Publication Notes

    • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Mankowski, Mark E.; Manning, Mark J.; Slowik, Damien P. 2015. Durability of capped wood plastic composites. In: Proceedings One Hundred Eleventh Annual Meeting of the American Wood Protection Association; Asheville, NC. 12-14 April 2015. American Wood Protection Association. Birmingham, AL. pp. 124-132.

    Keywords

    wood plastic composites, (WPC), capped decking, durability, biological degradation

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