With rich and full colors and accessible texture enjoyment, stone paint adheres the original charm and beauty of stone to the wall surface by spraying, protecting and decorating the wall surface, so that the wall surface has natural stone effect from the sense
.
Why divide? Answer to do grid, which undoubtedly increases the difficulty of construction, but why do we still do it? The main purpose is to avoid serious cracking of large area concrete base due to thermal expansion and cold shrinkage
.
Setting a certain number of dividing joints can reduce the area of single concrete waterproof layer, so as to reduce its deformation due to expansion and warpage, and can effectively reduce the occurrence of coating cracks
.
At the same time, it is also convenient for the construction to take the grid line as the boundary, and carry out the construction more orderly
.
In addition, the grid line can also increase the beauty of the building facade, will not appear too monotonous
.
Why use alkali resistant primer? A
.
We all know that the base material of building exterior wall is mostly cement mortar or concrete surface, which is characterized by many voids and strong alkalinity
.
The porous structure makes it strong in water absorption, which makes the surface of the stone like coating not smooth enough and easy to cause the film wrinkle, and may cause the film drying too fast and cause the top coat cracking and waste
.
Strong alkalinity can lead to the chemical degradation of the resin in the coating, accelerate the aging of the coating, reduce the service life of the coating, and even whiten and return to alkali
.
The superior sealing and isolation function of the stone paint alkali resistant primer separates the salt and alkali from the stone paint, penetrates into the base layer to make up for the gap between the base layer, produces strong mechanical bite force, and improves the adhesion of the coating
.
The service life of the stone like paint system is improved and guaranteed as a whole
.
How to choose alkali resistant primer? A primer can be divided into transparent primer and black primer
.
How to choose transparent primer and black primer? What are the differences between the two different color primers? The main difference between transparent primer and black primer is the partition of the wall
.
If the wall is divided into large grids or not, transparent primer should be used
.
If the wall is divided into large grids, black paint should be used to trace lines
.
If the wall is divided into small grids, black primer should be used
.
In addition to this difference, there is no difference between transparent primer and black primer What are the benefits of using topcoats without too much fuss? A
.
the main purpose of coating topcoat is to enhance the waterproof and stain resistance of stone paint coating, UV radiation resistance and other properties, and to facilitate future cleaning
.
If there is no finish varnish, it is easy to cause the stone paint coating to be water-resistant, white, easy to stain, and reduce the life of the stone paint
.
How to deal with the phenomenon of uneven, hollowing and falling off of genuine stone paint? Answer: the phenomenon of uneven, hollowing and falling off of the real stone paint is related to the bottom layer treatment
.
Because the bottom layer treatment is not smooth, the real stone paint is uneven
.
The problem of hollowing is that the bottom layer is bulging, so it is felt that the real stone paint is bulging, so the bottom layer must be treated well before spraying the real stone paint
.
In addition, before spraying real stone paint, we must brush the special primer for real stone paint, which has the function of alkali resistance and moisture resistance
.
Shovel off the unevenness and hollowness until it can’t be removed, then remove the floating ash, brush the sealing primer once, and when the primer is dry, scrape the water-resistant putty for leveling, and finally spray the real stone paint
.
Hollowing phenomenon is generally related to the base material, the quality of putty powder is too poor, and the putty powder is not handled well before construction
.
How thick is the stone paint coating? A
.
the application of stone like paint requires the coating to reach a certain thickness
.
On the one hand, it is to ensure the fullness, texture and lifelike stone like effect of the coating; on the other hand, it is to avoid the problems of shading and color difference in the construction process of stone like paint
.
Generally speaking, 2-3mm can completely present the perfect stone like texture of the coating
.
In other words, the thickness of 2-3mm of stone like paint can completely achieve the desired effect in quality
.
There is no need to increase the coating thickness, resulting in additional costs
.
Source: the article is transferred from the Internet, we respect the original,
.
