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What problems usually occur in the use of aluminum composite panels?

      A lot of friends may not know very well when using aluminum composite panel, it will appear in our actual life what aspects of the problem, here we will give you a relevant content of knowledge points, if you want to understand, you can take a look!


Discoloration and decoloration of plastic sheet


  Discoloration and discoloration of aluminum composite panels are mainly caused by improper selection of panels. Aluminum composite panels are divided into indoor panels and outdoor panels, and the surface coating of the two types of panels is different, which determines their application to different occasions. The surface of the panels used indoors is generally sprayed with resin coating, which cannot adapt to the harsh natural environment outdoors, and if used outdoors, it will naturally accelerate the aging process and cause the phenomenon of discoloration and decolorization. The surface coating of outdoor aluminum composite panel is generally selected to resist aging and UV resistance of polyfluoroelastomeric coating, which is expensive. Some construction units deceive the owners and use the indoor plates as the anti-aging and corrosion-resistant high-quality fluorocarbon plates to extract unreasonable profits, thus causing serious discoloration and decoloration of the aluminum plates used in the project.


  Neatly glued seams of aluminum composite panels


  When aluminum composite panels are used to decorate the surface of buildings, there are generally gaps of certain width between the panels. For the sake of aesthetic needs, the gaps are generally filled with black sealant. In order to save time, some constructors do not use paper tape to ensure the neatness and rules of gluing, but use the protective film on the surface of aluminum composite panel as a substitute. As the aluminum plastic plate in cutting, the protective film will produce different degrees of tearing situation, so use it as a substitute for the protective tape, it is impossible to clean up the glue seam neatly and tidily.


  Open glue and peeling of plastic sheet


  Aluminum plastic plate open glue, fall off, mainly due to the improper choice of binder. As the ideal binder for outdoor aluminum composite panel project, silicone adhesive has unique and superior conditions. Previously, China's silicone adhesive mainly depends on imports, its price makes many people deterred, only those high-rise buildings on the expensive curtain wall project to dare to ask for. Now, China's Zhengzhou, Guangdong, Hangzhou and other places have put into production different brands of silicone rubber, resulting in a big drop in prices. Now, in the purchase of aluminum composite panels, the salesman will recommend the kind of special fast-drying adhesive. This kind of glue can be used indoors, with the climate change in the outdoor, it will appear the plate open glue, peeling phenomenon.


  Deformation and bulging of aluminum composite panel surface


  In any city, it is not difficult to find some deformation of the surface of the aluminum composite panel, drums of those big fatalities of the project. This phenomenon is found in small facade decoration projects, and also in large high-rise buildings. Previously in the construction, there have been such quality problems, we had thought that the quality of the plate itself; later, after we focus on the analysis only to find that the main problem in the paste aluminum composite plate on the grass-roots plate, followed by the quality of the aluminum composite plate itself. Dealers often provide us with the construction process of aluminum composite panel, the recommended base material is mainly high density board, woodworking board and so on. In fact, this kind of material in outdoor use, its service life is very fragile, after the wind, sun, rain, will certainly produce deformation. Since the grass-roots materials are deformed, then as the surface of the aluminum composite panel that there is no deformation of reason? It can be seen that the ideal outdoor base material should be after rust-proof treatment angle steel, square steel pipe knotted into the skeleton is better. If conditions allow, the use of aluminum profiles as a skeleton is more ideal. This kind of metal materials made of the skeleton, its cost is not much higher than the wood keel, high density board, can really ensure the quality of the project.



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