Why is it important to have walls really stone paint closed primer construction

At present, more and more construction USES really stone paint exterior wall decoration, but in a couple of years, many engineering appeared quality problem such as peeling, blister, crack, FanJian, influence the use of external wall really stone paint effect and service life. Among them, a large part of the reason lies in the seal primer. Both cement plaster and insulation anti-crack mortar surface at the grassroots level construction outer wall inside is mainly composed of cement, many relatively high alkali content of cement. If improper use primer, even if the poor quality of primer, also can cause severe alkali back to the original. Alkali corrosion will quickly really stone paint coating, fade, and cracking of differentiation, and other quality problems. In addition to pay attention to the quality problem of the seal primer itself, at the same time in the process of construction, to control the dilution ratio, don't add too much water, otherwise it will reduce the performance of the products, but not too thick, otherwise the primer permeability is bad, cause peeling coating. In addition, as a user, it is necessary to clearly understand the comprehensive performance is better than the color of transparent primer primer. In simple terms, color primer is on the basis of transparent primer to add all sorts of color paste. Paste itself only play a role in terms of change color. Primer containing a certain amount of paste, can degrade the performance of the products in the province. Therefore, the construction unit when choosing engineering materials, should try to choose transparent seal primer. Primer, like the foundation of building a house, to really stone paint coating quality plays a vital role. Therefore, must pay attention to the choice of materials and structures.