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After visiting the home improvement supervisors, designers, construction teams, and accessing some information, we got some common arguments. Incomplete places, I hope everyone can supplement them.
Experts believe that, in general, the use of high-quality paint, the wall can be used normally for 5 to 8 years, and then refresh again. The occurrence of blistering, cracking, and peeling in a short period of time should not be a normal phenomenon. There are many reasons for these problems, which must be specifically analyzed according to actual conditions. Remind the majority of users, stare at the decoration, should grasp the brushing details.
â– one. Wall blisters â–
The main reason: When the wall is foaming, there will be sand-like small bubble bulge, caused by: 1, adding too much pigment in the paint mix or mixed with debris; 2, paint bucket, brush, roller or The spray gun is not clean; 3, before the paint is completely dry, the water penetrates into the paint and the paint film loses its adhesiveness; 4. The brushing wall surface is not clean.
Solution: Avoid brushing in high humidity seasons or weather; time interval for brushing must wait for putty or paint film to dry and coat the next layer; clean the construction environment before the paint is applied, and clean and brush the object.
â– Second. Wall peeling â–
The main reason: the decoration is less than a year, the wall began to peel, mainly due to poor construction workers, putty, coating adhesion and poor contraction performance.
Solution: The craftsmen of the workers are completely indistinguishable from laymen. First of all, they must select quality products, especially high-quality putties, and should select water-resistant putties of well-known enterprises. These putties have high whiteness, good water resistance, high bonding strength, no peeling, no chalking, no peeling after use, and can solve the wrinkles of wall peeling; at least two or three scrapes of putty are required before painting latex paint; Gypsum powder plus 108 glue can increase the viscosity.
It is recommended that the majority of netizens paint special items for special purposes. The interior wall latex paint has high requirements on scrub resistance, and it is easier to contaminate the wall in home life and can be wiped with water at any time. Exterior wall paint can be used for interior wall painting because it also has water resistance, while interior wall paint does not have anti-sun function, so it cannot be used for painting exterior walls.
â– three. Wall cracking â–
The main reason: It may be caused by the putty shrinkage. Before the construction, the putty is not completely dry and the putty is scraped again. The second time the putty is not dry enough, the paint is applied, causing the back layer of the putty to crack.
Solution: The construction should wait until the putty is dry and then scrape again. The thickness of the putty should not exceed 2 mm. Rework and repair should be scraped first cracked, and then putty scraper, putty and then painted finish.
The phenomenon of blistering, cracking, and peeling on the wall is a problem that many users reflect. After the renovation, or about a year or so ago, the wall and the top of the house began to foam, crack, and get rid of skin. Everyone was upset when it came to such a thing. What caused it?