Calcium silicate board outside the brush coating needs grassroots?
Now the market in Hebei, Beijing, Fujian and other miscellaneous board quality is not stable enough, the process does not pay attention to the above questions must be out. In particular, the batch of a few putty, a putty dry to do the next one, putty thickness can not be too thick, 2-3MM can, and some workers do not understand, plus buy a cheap board after the installation of wave deformation, putty approved Die thick (cracked place with shovel shovel actually have 6-8MM thick), not cracked strange.
As for the paint on the normal to do like a bottom two or two bottom side, do not worry. The most important is the grassroots must be installed and installed.
To the normal seam processing is completed, and so completely dry and then putty putty. The The In order not to finally the last crack, the construction process must be strict requirements, each process must be completely dry and then to the next process, and sometimes the workers to consider the progress, are not dry directly to do so, so that grass-roots treatment are Not normal, there will certainly be cracking, arch and other issues.
You can be the normal construction, and you put this board as a wall just fine
