• PET film surface pretreatment
    • 2025-04-11 16:26:03
    • admin

    PET Film PET molecular structure is highly symmetrical, has a certain ability to crystal orientation, due to its molecular particularity, the general coating is difficult to attach on its surface, directly on its surface for spraying or printing, the coating is easy to peel, fall off. In order to increase the adhesion of PET material, it is necessary to pretreat its surface. There are mainly the f...

  • The function of coating surface treatment agents on films
    • 2025-04-25 17:03:03
    • admin

    The main function of the film surface coating treatment agent is to enhance the comprehensive performance of the film through chemical or physical modification. The specific functions can be summarized as follows: 1.Enhance surface adhesion Improve the adhesion of ink/adhesive: By increasing the surface energy of the film or introducing polar groups, make the ink, coating or adhesive more lik...

  • Steps for Coating Metal with Polyurethane Emulsion
    • 2025-11-19 17:29:31
    • admin

    The process of coating metal with polyurethane emulsion can be divided into the following steps: Surface Preparation: Before applying the polyurethane emulsion, the metal surface needs to be properly prepared. This typically includes cleaning the surface, removing oil, dust, and other impurities, and performing rust removal to ensure coating adhesion and durability. Rust removal can be done mechan...

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