METHOD FOR SETTING RECOATING CONDITION OF WATER-REPELLENT COATING FILM

    公开(公告)号:US20240293843A1

    公开(公告)日:2024-09-05

    申请号:US18573000

    申请日:2022-07-14

    IPC分类号: B05D3/12 B05D7/02

    摘要: To provide a technique of continuously imparting favorable water-repellent performance to a vehicle exterior member for a long period.
    A method for setting a condition for recoating a vehicle exterior member with a water-repellent coating film, the method including:



    a peeling step of peeling a water-repellent coating film formed on a surface of the vehicle exterior member;
    a recoating step of forming a water-repellent coating film onto the surface to obtain a coating-film-formed vehicle exterior member, the recoating step being subsequent to the peeling step; and
    an assessment step of adhering a test liquid drop onto the water-repellent coating film formed through the recoating step, and making a water-repellency assessment, wherein
    the assessment step includes making, when a fall-off angle of the test liquid drop is not greater than 20°, an assessment that a recoating condition used in the peeling step and the recoating step is an acceptable recoating condition.