What are the causes of cracks in real stone paint?
How to solve all kinds of cracks in real stone paint?
During the spraying process of real stone paint, sometimes there will be cracks at the internal and external corners, because the internal and external corners are the intersection of two faces. If the real stone paint is sprayed, there will be two different directions of tension acting on the coating at the internal and external corners at the same time in the drying process, which is easy to crack. On site solution: if the internal and external corners of the cracks are found, spray again with a thin spray gun every half an hour until the cracks are covered; for the internal and external corners of the new spray, pay special attention not to spray the thickness once, adopt the thin spray multi-layer method, that is, spray again after the surface is dry, the distance between the spray guns should be far, the movement speed should be fast, and the vertical internal and external corners should not be sprayed, only scattered Shoot, i.e. spray two sides to let the edge of the spray flower sweep into the internal and external corners
The main reason may be that the weather temperature difference is large and suddenly becomes cold, resulting in different drying speed of the inner and outer layers, and cracks are formed when the surface is not dry and the inner layer is not dry. The solution on site is to use a small nozzle spray gun, spray thin layers, try to control the drying speed of each layer, and the spraying distance is a little far away
Cracks in film forming process
When spraying, the coverage is not uniform or too thick, and cracks appear on the coating surface after film formation, or even after several weeks. This situation needs to be analyzed in detail. In addition to the spraying method during construction, the formula should be changed if necessary, and trial production should be carried out again
Real stone paint is indeed a very good product, safe, decorative and cost-effective. In just a few years from 2010, real stone paint has replaced ceramic tiles and dry hanging stone, becoming the first exterior wall decoration material for medium and high-end buildings "Good things, how long will it last?" How many years does real stone paint last? 10 years? 15 years? 20 years? Some even claim that 70 years will not fade? Recently, the use life of real stone paint has become a hot topic, so how long is the service life of real stone paint
The service life of real stone paint does not mean that the coating falls off
The service life of real stone paint refers to the time when the decoration effect is maintained. In short, there will be no obvious pollution, cracking, yellowing, fading and other phenomena within the service life, which does not mean that the real stone paint falls off. The predecessor of real stone paint is "sandblasting". In terms of adhesion, sandblasting coating can keep for 7-8 years. At present, the middle and high-grade pure acrylic and silicon acrylic real stone paint in the market will not have problems as long as it is constructed according to the standard process
How long is the service life of real stone paint
The service life of real stone paint is closely related to the resin used. Generally speaking, the service life of low-grade styrene acrylic real stone paint is about 3-5 years, and the poor ones will fade, turn yellow, blacken and crack in a few months; the service life of pure acrylic system is more than 10 years; the service life of silicon acrylic system is more than 15 years. The reason why the real stone paint is popular in the market is mainly because of the appearance of pure acrylic and silicon acrylic systems. "The service life can be up to 70 years" is obviously exaggerated propaganda, which is irresponsible to mislead customers
How to guarantee the service life of real stone paint
"Is it possible to achieve a service life of more than 10 years by using pure acrylic and silicon acrylic real stone paint?" Obviously not. Real stone paint is a systematic project including raw materials, design and construction. Good finished product = good product + good plan + good construction. The product quality determines the performance of raw materials, while the scheme and construction ensure the performance of coating. In order to ensure the quality and service life of the finished products, the principle is to deeply participate in customer projects, from design, color selection and matching, to scheme recommendation and construction. In addition, freight has more than 30 experienced project managers to ensure that customers get perfect finished products from on-site management and control.