Conventional prepainted organic coatings on zinc nickel substrates consist of a dried-in-place chrome bearing pretreatment layer followed by a thin film solvent-based organic topcoat. This system is generally applied in order to provide additional corrosion protection to the brittle zinc nickel layer subsequent top forming. An improved version of this organic/metallic coating system has been developed which consists of applying a one-coat water-based chrome bearing epoxy to zinc nickel material. In addition to the production efficiencies gained by applying a one-coat prepainted system, enhancements are also realized with regard to corrosion resistance and formability characteristics. It has also been found that a novel curing technique an be utilized in order to allow for higher temperature curing of prepainted material on bake hardenable substrates without adversely affecting mechanical properties.


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    Title :

    Development of a one-coat organic as a replacement for conventional two-coat composite systems on zinc nickel


    Additional title:

    Die Entwikclung einer organischen Einzelbeschichtung als Ersatz für herkömmliche Doppelbeschichtungs-Verbundsysteme auf Zink-Nickel


    Contributors:

    Published in:

    Publication date :

    1993


    Size :

    6 Seiten, 5 Bilder, 7 Tabellen



    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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