In the field of coating R&D, "wetting" and "dispersion" have long been regarded as independent steps. However, in engineering practice, the traditional method of adding additives in separate steps often causes problems such as foaming, coarsening, and shrinkage cavities. Zhangdao Chemical points out that "wetting + dispersion 2-in-1" additives have become a safer formulation choice due to their unique advantages.
    Genuine 2-in-1 products are not simple mixtures but functional polymers with characteristics such as pigment anchoring groups and affinity structures, which can solve the core pain point of uncontrolled migration of excess wetting agents. Their safety stems from three aspects: fixing wetting units to avoid migration, a wider effective dosage window, and reducing interface role conflicts.
     Such additives are particularly suitable for systems such as high specific surface area pigments and high PVC products, as well as products requiring high water resistance and storage stability. However, when pursuing extreme cost or having special control needs, the traditional step-by-step scheme is still more flexible. Experts suggest that if prioritizing system stability, 2-in-1 additives are a more rational choice.

    For more information, please click: https://www.tiktok.com/@mia_iota/video/7597717976720149782