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    Home > Coatings News > Paints and Coatings Market > Coating classification: alkali resistance of coating

    Coating classification: alkali resistance of coating

    • Last Update: 2020-04-03
    • Source: Internet
    • Author: User
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    Core tip: the alkali resistance of paint refers to the resistance of paint film to alkali corrosion

    The specific inspection method in the national standard is: first, prepare the test board on the standard size asbestos cement board according to the standard provisions, and seal the prepared test board with 1:1 paraffin and rosin mixture for back sealing

    Then immerse 2 / 3 of the test plate area into the saturated solution of calcium hydroxide at 23 ± 2 ℃ until the specified time

    Observe whether there are blistering, crack, peeling, pulverization, softening and dissolution of the coating

    The alkali resistance of the coating is different from what we often call back alkali Paint knowledge how about Akzo Nobel Powder Coating Recommended introduction: powder coating is a kind of coating with different form from general coating, which is in powder form

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    Since the introduction of this technology, powder coating has been able to continue to maintain the Home of paint news: the alkali resistance of paint refers to the resistance of paint film to alkali corrosion

    The specific inspection method in the national standard is: first, prepare the test board on the standard size asbestos cement board according to the standard provisions, and seal the prepared test board with 1:1 paraffin and rosin mixture for back sealing

    Then immerse 2 / 3 of the test plate area into the saturated solution of calcium hydroxide at 23 ± 2 ℃ until the specified time

    Observe whether there are blistering, crack, peeling, pulverization, softening and dissolution of the coating

    The alkali resistance of coatings is different from what we often call alkali return

    The alkali resistance of coatings tends to investigate whether the paint film of products is damaged under the alkaline condition, while alkali return refers to the precipitation of alkaline substances on the basic substrate of the paint film, and the paint film is generally not damaged

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