Natural real stone paint production and construction how to adjust the color difference

China Paint Online News Information
Natural real stone paint in environmental protection, construction convenience, color richness and other aspects of the advantages are obvious, due to the use of natural color sand as the main raw material, to make different batches of real stone paint color to maintain complete consistency is very difficult. But if it is effectively controlled from the source, from production and construction, the color difference of real stone paint can be solved to a great extent.
1, to produce batches of exactly the same color between the true stone paint. There are many difficulties, at the same time, the natural color characteristics of natural color sand manufacturers or their downstream real stone paint manufacturers also have more stringent requirements. Some large colored sand producers use mixing equipment for shipment according to downstream production requirements. The consistency of color of color of color sand in larger batches is guaranteed, but the cost of supply of corresponding color sand will be increased accordingly. Therefore, the choice and control of color sand and color sand manufacturers become the fundamental to control the existence of true stone paint color difference.
2, for the procurement of established real stone paint color sand, requires production and research and development personnel, according to customer needs and existing types of color sand, color adjustment, and traditional paint is different, real stone paint color is a natural color sand, its irregular shape and uneven coating determines that its color can not be through professional light-spectrometer computer coloring equipment, can only rely on the experience of color engineers to carry out artificial coloring. This has more stringent requirements for color engineers, such as knowledge of raw materials, sensitivity to color experience, proficiency and precision of true stone paint formulations.
3, the production of real stone paint is based on small sample formulation research and development, and then enlarge the production, and then according to customer demand for production correction. Production of raw materials to do the right method, there is a principle is shallow first, then deep, first more and then less, by shallow repair deep easy, by deep repair difficult. For the addition of less, darker color color sand to take the method of fastening, often can largely solve the repeated number of color correction. At the same time in the production of a variety of additives to increase and adjust and the process control between them is quite exquisite. Process precision control combined with rich production experience is excellent production difference. The necessary conditions for true stone paint with a high degree of matching color.
4, the color difference of real stone is also closely related to the construction method and construction thickness. The same batch of real stone paint or the same bucket of real stone paint, spraying and scraping color will be slightly different. Sprayed out of the real stone paint film texture is strong, evenly dispersed, color dispersion is more uniform, while the effect of scraping is high flatness, and biased towards large grains of sand to collect, fine sand easy to float on the surface, fine sand up the mainstream color. Of course, this depends on the specific construction requirements and coating effect.
5, but with the continuation of the use of time, weather resistance, anti-fouling, chromia, whitening and other ills gradually appear, especially the color difference caused by a variety of reasons has become the most difficult problem in the application, painting or scraping thickness of different colors are also different, so the construction should try to maintain the consistency of the method, so as to achieve as uniform construction as possible. In the same wall as far as possible to use the same batch of real stone paint due to the difficulty of testing methods, color sand color equivalent physical parameters can not be unified and effective combing, national standards and related industry standards have not yet true stone paint color difference detection standards, this is to control their own good grasp.
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