百盛彩票开户 Color selection of color steel plate coating: the selection of matching color is mainly based on the surrounding environment and the owner's hobbies, but the selection of light color coating pigment in the technical terms is large, and the inorganic pigment with superior durability can be selected, such as titanium dioxide, etc., and the coating's thermal reflection ability (the reflection coefficient reaches the black coating) in summer, the temperature of the coating itself is relatively low, which is conducive to the coating life Extension of life.
In addition, even if the coating is discolored or powdered, the change of light color coating film is also very small compared with the primary color, and has little impact on the appearance. And brunet (especially bright color) use organic color to be in the majority, encounter ultraviolet ray to illuminate easy fade, short 3 months change color. Generally, the thermal expansion rate of color coated steel plate is different, especially the linear expansion coefficient of metal substrate and organic coating is quite different. When the ambient temperature changes, the expansion or contraction stress will occur at the interface between the substrate and coating, and if there is no appropriate release, the coating will crack.
In addition, there are two misunderstandings in the current domestic market: first, there are a large number of white primers in China. The purpose of white primer is to reduce the thickness of the surface layer, because the general anti-corrosion primer for buildings is yellow green (and therefore strontium chromate pigment), which must be thick enough.
百盛彩票开户 The other is the same construction project and different manufacturers of color coated steel plate, different batches of color coated steel plate, the building seems to be the same color, but in a few years of sunlight, the change trend of different manufacturers of different colors of coating is different, leading to serious color difference, there are too many examples. Even for products from the same supplier, it is strongly recommended to place an order for the same project, because different batches may use products from different paint suppliers, which increases the possibility of color difference.