-
Anonymous users2024-01-24Causes of cracking of exterior paints.
1. Cracking of the base layer. The base layer of the exterior wall coating finish is the cement mortar plastering layer, which will produce dry shrinkage and temperature difference shrinkage during the condensation process, and if the exterior wall plastering construction operation is improper, it is easy to cause hollowing and cracking. After a period of sun wipers, the internal cracks will gradually develop outward, and the paint surface layer with a very thin paint film is difficult to resist this internal stress, and cracking will follow.
2. Cracking of the putty layer. Due to the defective quality of the exterior wall putty used, the crack resistance is poor; Or due to improper construction and operation, the putty batch is scraped on the wall because of dry shrinkage and cracking, which affects the surface layer of the coating.
3. Cracking of the coating surface layer. Due to poor crack resistance or improper construction, some coatings with quality problems are prone to dry shrinkage cracks and other quality problems after being exposed to the wind and sun shortly after being painted on the wall.
Seriously, you need to repaint the wall!
-
Anonymous users2024-01-23The walls are damp, look at whether it is an occasional situation or a long time, if it is occasional, ventilate for a few days and repaint, if it is a long-term order, it is recommended to paint it, or paste tiles.
-
Anonymous users2024-01-22The walls are wet, so ventilate the room to keep it dry.
Where, Qingdao can be considered. Let's talk about it, the work can't be done in one day, you need to shovel off the wall skin, and wait for it to dry thoroughly to go through the oiler process, the regular process of the oiler is 5-7 days, and the long time is because each time you have to wait until it is dry before you can do the next process.
No, because the body is relatively wet, the first scraping will make the tile unreliable.
Remove the wall paint, which is not very clean in general, so the wall must be chiseled, otherwise the tiles are easy to fall off.
From experience, this is generally a local immersion of water to make the exterior wall damp, resulting in the putty powder loosening and dusting, so that the latex paint falls off. Carefully check the waterproof, no one dares to guarantee the waterproof, and the waterproof test can come up with convincing results!
Do waterproofing needs to be done on the surface of the water, dig excellent permeability crystalline waterproofing, you can do it yourself on the cement surface with a super permeable waterproof guard (if there are cracks and potholes on the cement surface, fill the complete with metin porcelain glue and then do waterproofing). >>>More