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| As the coating products are relatively single, but widely used due to the complex and diverse industrial building substrates, often produce a large number of paint films, if the substrate lacks moisture, resulting in the paint can not be spread evenly, can not be uniformly filled. Base coating material wetting agent as an important coating additives for surface control, used in water-based industrial coatings, can prevent paint substrates. Base coating material wetting agent is used in waterborne industrial coatings as an important coating additive for surface control to prevent defects on wetted surfaces and to improve the resistance and appearance of paint films. |
| Characteristics of Base coating material wetting agent |
| Base coating material wetting agent is a surfactant that wets the building substrate by reducing the surface tension of the paint and by its special interfacial action. Pigment wetting agent and Base coating material wetting agent belong to the same kind of surfactant, they both have the properties of surfactants, but focus on different functions. Pigment wetting agent mainly focuses on the wetting of the pigment surface to improve the dispersion and color development performance of the pigment. The focus of base material wetting is on industrial substrates to avoid uneven coating, shrinkage, oil shrinkage, flow and other problems caused by base material wetting. |
| Mechanism of action of Base coating material wetting agent |
| Conventional Base coating material wetting agent is used to wet the substrate by reducing the static working surface tension of the paint to improve the control ability of the paint film surface. Generally speaking, the lower the static and dynamic surface tension, the stronger the wetting ability of the substrate, and the less oil shrinkage, edge shrinkage, pinhole and other phenomena produced by the paint film. Although the size of the surface tension of the liquid can be reduced is an influencing factor, the wetting ability is a very important issue, the traditional substrate wetting is through the role of a single, now there is a Base coating material wetting agent through the multiphase effect to play a role, the efficiency is significantly improved. |
| Defoaming mechanism of Base coating material wetting agent |
| Due to the special hydrophobic structure of the initial surfactant when the liquid adsorbs the surfactant, the dynamic surface tension or interfacial tension of the surfactant decreases and continues until a static equilibrium value is reached. The duration of the decay depends on the diffusion and absorption efficiency of the surfactant. Base coating material wetting agent has good defoaming ability for waterborne coatings under the effect of excellent dynamic surface tension. |
Contact: April Lee
86-13817187625
No.88 Organosilicon Industrial Boulevard, Huashan Industrial Park, Zhanyi District, Qujing, Yunnan Province, China
