Coatings are mainly divided into water-based coatings and oil-based coatings. The problem of uniform reaction in the market of waterborne coatings under the brand of imitation stone paint is that its viscosity is relatively low, so its adhesion is not as good as that of oil coatings. However, low viscosity is conducive to construction, for example, it is easier to modify later, and waterborne coatings are more environmentally friendly and cost-effective.

    Water-based paint in the process of construction and material of surface cleanliness requirements are relatively high, because the water's surface tension, if does not carry on the surface of the dirt cleaning will make the coating produces shrinkage cavity.

    Waterborne coatings are highly corrosive to coating equipment, so they should be made of anti-corrosion liner or stainless steel material when used. The water-based coating corrodes the conveying pipe and dissolves the metal. Only in this way can the dispersed particles be precipitated and the coating film produces the pitting point.

    The dispersion stability of water-borne coatings against strong mechanical forces is poor. When the velocity of flow in the conveying pipeline changes sharply, the dispersed particles are compressed into solid particles, causing the coating film to produce hemp spots. Waterborne coatings are highly corrosive to coating equipment, which requires anti-corrosion lining or stainless steel materials. The water-based coating corrodes the conveying pipe, dissolves the metal, precipitates the particles, and produces the pitting point. The stainless steel pipe must be used. Baking waterborne coatings have strict requirements on construction environment conditions (temperature and humidity), increasing the investment of temperature-regulating equipment and increasing the energy consumption. Water - based coating water evaporation latent heat, baking energy consumption. The organic solvents with high boiling point of waterborne coatings produce a lot of oil smoke when baking, and drop on the surface of the coating after condensation to affect the appearance.

    The problem of poor water resistance exists in waterborne coatings, which leads to poor stability of coatings and tank fluids and poor water resistance of coatings. The medium of water-based coatings is generally slightly alkaline (ph7.5 ~ ph8.5), and the ester bonds in the resin are easy to hydrolyze, leading to the degradation of the molecular chain, affecting the stability of coating and tank fluids, and the performance of coating. Water-based paint, although has many problems, through the formulation and coating process and equipment and so on technology unceasing enhancement, get to prevent some problems in the process, some through the formula itself to improve and improve.

    The physical properties of waterborne coatings are often ridiculed. Some consumers have always believed that the surface of water-based coatings is not as smooth and smooth as that of oily coatings. In fact, this point and coating services, that is, the construction of the technical level is inseparable. The person in charge of a guangzhou home to install a company says, the practice of oily coating is "7 cent bottom, 3 cent face", transparent lacquer fills brown eye can use waterborne transparent putty. The effect that oily coating wants to achieve is level off smooth, waterborne coating can achieve such effect completely. "Oil paint workers have less then a few years, to the construction of oil paint more then twenty years, and waterborne coatings were mostly is the first time", he said, "if oil paint work can completely according to the construction technology of waterborne coatings, such as strict proportion and water, effect can do." In addition, the price of waterborne coatings in the current coating market is higher than that of oily coatings. Nevertheless, the personage inside course of study thinks, water-based paint while the unit price will be higher than the traditional oil paint coating, but not only a safe environmental protection, the coating process is quite simple, and do not need other additional products, overall, there is not how much higher than the traditional coating.