Interior wall paint cracking is something a lot of people do not want to see, because it also means that we need to re-spend time and effort to eradicate and decorate it. The process is certainly very troublesome. Then what are the causes of paint cracking? The following powder coating powder manufacturer teach you how to solve it.
Interior wall paint cracking cause:
1, simple wall paint layer gap;
2, putty powder layer of the gap, invading the wall paint layer;
3. The gaps formed by the batch putty layer invade the putty powder layer and the wall paint layer;
4, the structural gap caused by the wall of housing construction, invasion of the surface. This situation can be divided into two kinds. One is the decoration project, the basic wall has already caused cracks, did not use the appropriate solution; two is in the interior decoration, there is no crack on the surface of the basic wall, but after the interior decoration is completed, because of other reasons, the wall caused cracks, and reflected in the surface.
Cracking is basically the bottom problem, especially the cracking of the new building paint project, generally all the cracking of the putty powder layer, and even the cracking of the wall structure.
Also, HAVE ONE KIND IS BUILDING COATING THICK TALL, CAUSE AFTER THE WALL WITH THE LOWEST LAYER BE BORED WITH POWDER LAYER AGGLUTINATIVE SEX IS NOT QUITE GOOD, EPIDERMAL CRACK OR DROP.
Solution to interior wall paint cracking:
1. As far as possible, apply putty powder gradually until the dry shrinkage of the mixed mortar batch putty is carried out, that is, one month after the batch putty is applied, and check the gap caused by the dry shrinkage of the mixed mortar batch putty before the batch putty is applied.
2. Because of the cracking of the building paint caused by the putty powder component and the putty layer of the mixed mortar batch, the paint and putty powder should be removed, and the anti-cracking fiber net should be affixed to the cracked place, and the putty powder with high hardness should be used for repair.
Such as dry shrinkage after smooth polishing, brush latex paint.
3. Construct the interface under the beam and masonry.
After a period of observation, if there is no further foundation settlement and cracking, the construction paint, putty powder and batch putty layer should be removed, anti-cracking fiber mesh should be affixed at the interface between the structural beam and the masonry, and at the same time, MU7.5 cement mortar of high specification model should be selected to carry out batch putty repair.
Exterior wall find the part of the cracking problem, in each reference in the process of a single wall local construction technology, group of be bored with child after pouring, damp walls, using grey board points double symmetry into the wall and the second layer in the first layer of concrete before final set and hard, and then scrape to evenness with darby, eventually with local plastic board fine polishing, and maintain a rough surface, then on interior wall coating.
The exterior wall tiles solved by this method have a good effect and basically no cracking.
It is proposed that the dispatched engineering construction team learn more training and choose local construction technology.