Volume 21, Issue 4 (July 1993)

    Determining Paint Adhesion to Wood Using a Uniform Double-Cantilever Beam Technique

    (Received 10 August 1992; accepted 1 December 1992)

    CODEN: JTEOAD

      Format Pages Price  
    PDF 8 $25   ADD TO CART


    Abstract

    Accurately predicting paint adhesion without the lengthy time required for typical exposure and evaluation is advantageous. Mechanical tests that use shear block, lap shear, or tensile specimens to measure paint adhesion result in large data variability, making it difficult to differentiate subtle changes in adhesive strength. The objective of this study was to decrease the variability of measured paint adhesion in fracture toughness tests. Preliminary and computer-aided experiments were conducted using uniform double-cantilever beam (UDCB) and shear block specimens. The coefficient of variation (COV) for the shear block tests was about 15%. The UDCB specimens cut from the same panels as the shear block specimens had a COV of 10%. Computer-aided tests of UDCB specimens gave a COV of less than 5%. Results show that using UDCB specimens with the aid of a computer is an excellent technique for determining paint adhesion to wood.


    Author Information:

    Knaebe, M
    Chemist and supervisory research chemist, USDA Forest Service, Forest Products Laboratory, Madison, WI

    Williams, RS
    Chemist and supervisory research chemist, USDA Forest Service, Forest Products Laboratory, Madison, WI


    Stock #: JTE11952J

    ISSN: 0090-3973

    DOI: 10.1520/JTE11952J

    ASTM International is a member of CrossRef.

    Author
    Title Determining Paint Adhesion to Wood Using a Uniform Double-Cantilever Beam Technique
    Symposium , 0000-00-00
    Committee D01