ASTM D4708 - 19

    Standard Practice for Preparation of Uniform Free Films of Organic Coatings

    Active Standard ASTM D4708 | Developed by Subcommittee: D01.23

    Book of Standards Volume: 06.01


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    Significance and Use

    4.1 Free films are required for conducting tests to evaluate physical and mechanical properties such as tensile and elongation (Test Methods D2370), moisture vapor permeability (Test Methods D1653 and E96/E96M), microbiological activity resistance (Test Method D5590), and other physical properties of organic coatings where the substrate may interfere with the determination.

    1. Scope

    1.1 This practice covers the preparation of free films of organic coatings for use in determining the physical properties of the coatings.

    1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

    1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

    1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    D823 Practices for Producing Films of Uniform Thickness of Paint, Coatings and Related Products on Test Panels

    D1005 Test Method for Measurement of Dry-Film Thickness of Organic Coatings Using Micrometers

    D1653 Test Methods for Water Vapor Transmission of Organic Coating Films

    D2370 Test Method for Tensile Properties of Organic Coatings

    D5590 Test Method for Determining the Resistance of Paint Films and Related Coatings to Fungal Defacement by Accelerated Four-Week Agar Plate Assay

    E96/E96M Test Methods for Water Vapor Transmission of Materials


    ICS Code

    ICS Number Code 25.220.60 (Organic coatings)

    UNSPSC Code

    UNSPSC Code 46181533(Protective coats)


    Referencing This Standard
    Link Here
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    DOI: 10.1520/D4708-19

    Citation Format

    ASTM D4708-19, Standard Practice for Preparation of Uniform Free Films of Organic Coatings, ASTM International, West Conshohocken, PA, 2019, www.astm.org

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