ASTM WK3819

    Work Item: ASTM WK3819 - Revision of C474 - 02 Standard Test Methods for Joint Treatment Materials for Gypsum Board Construction

    (What is a Work Item?)

    Active Standard: C474 - 13

    Developed by Subcommittee: C11.02 | Committee C11 | Contact Staff Manager



    1. Rationale

    During the meeting at November 20, 2008 Subcommittee C11.02 meeting in St. Louis, the task group (C474/C475) discussed the revision to the number of passes that were to be used to apply self-adhering joint tape. The number of passes was reduced from 10 to two (2) in the proposed test method. It was agreed upon at the meeting that under normal application of self-adhering joint tape, a user would apply hand pressure across the joint tape twice (left-to-right or up-to-down motion); 10 passes is excessive and unrealistic. Thus the two (2) passes of the roller in the proposed test method more accurately represents the actual application methodology.


    Keywords

    bond of tape; cracking; joint compound; joint tape; joint treatment; putrefaction; shrinkage; tensile strength; topping compound; viscosity;
    Citing ASTM Standards
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    Work Item Status

    Date Initiated:
    1-9-2004

    Technical Contact:
    Thomas Sass

    Item:
    001

    Ballot:
    C11 (09-02)

    Status:
    Withdrawn From Balloting

    Item:
    002

    Ballot:
    C11 (09-02)

    Status:
    Ballot Item Approved as C474-2009 and Pending Publication