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    ASTM D1731 - 09(2020)

    Standard Practices for Preparation of Hot-Dip Aluminum Surfaces for Painting

    Active Standard ASTM D1731 | Developed by Subcommittee: B08.07

    Book of Standards Volume: 02.05

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    These practices describe procedures for the preparation of hot-dip aluminum surfaces for painting. Two types of surface preparation are included: solvent cleaning and chemical treatments. Solvent cleaning of the surfaces may be done by any of the following methods: manual swabbing or dip washing with a solvent such as mineral spirits or high flask solvent naphtha, solvent spray cleaning, and vapor degreasing in special equipment. On the other hand, surface preparation of aluminum for painting may be achieved by any of the following chemical treatment methods: use of alkaline cleaners, use of alcoholic phosphoric acid cleaners, use of acid fluoride deoxidizer, crystalline phosphate treatment, amorphous phosphate treatment, carbon chromate treatment, amorphous chromate treatment, and acid-bound resinous treatment.

    This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

    1. Scope

    1.1 These practices describe procedures for the preparation of hot-dip aluminum surfaces for painting.

    1.2 This standard may involve hazardous materials, operations, and equipment. 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.

    1.3 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.

    Military Standards

    MIL-C-15328 Specification for Acid Wash Primers


    MIL-M-10578B Metal Conditioner and Rust Remover (Phosphoric Acid Type)

    ASTM Standards

    D609 Practice for Preparation of Cold-Rolled Steel Panels for Testing Paint, Varnish, Conversion Coatings, and Related Coating Products

    ICS Code

    ICS Number Code 87.020 (Paint coating processes)

    UNSPSC Code

    UNSPSC Code 86131502(Painting)

    Referencing This Standard
    Link Here
    Link to Active (This link will always route to the current Active version of the standard.)

    DOI: 10.1520/D1731-09R20

    Citation Format

    ASTM D1731-09(2020), Standard Practices for Preparation of Hot-Dip Aluminum Surfaces for Painting, ASTM International, West Conshohocken, PA, 2020, www.astm.org

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