Nowadays, there are many materials on the market, the choice of wall materials is different, and the effect of decoration is different. However, many owners have found a situation where the wall is peeled off, which will affect The aesthetics of the furniture, the owners will also keep up with their urgency, so they must be dealt with in a timely manner, then how to deal with the wall peeling ? What are the reasons for the wall peeling?
First, how to deal with the wall peeling
1, remove the peeling part of the heavy putty
If the white wall or the bare wall is partially drummed or slightly cracked, you can remove the problem and remove the edge of the removed part. Then scrape the putty again, apply the primer, then brush and paint again, but it may There is a little color difference with the original wall.
2. Professional reinforcement for the grassroots
For the case of severe local exfoliation, it is necessary to consider whether the wall substrate is not finished at all. Remove the original wall body to the base layer of the wall, re-paint it with the interface agent or the sealing primer, and then level it according to the plaster, paste the mesh cloth (reinforcement crack prevention), and grind the wall lining three times, then polish it flat. The quality of the base layer will be much better at this time.
3, direct brushing topcoat covering part
If it is a simple color drop, it is generally recommended to use a roller brush method to cover a new round of primer and similar topcoat. However, before construction, it is necessary to judge the quality of the putty layer on the wall at this time: choose the wall to fade. The worst piece of water is soaked with water and then shovel with a shovel. If there is no powder or peeling off (indicating that the quality of the original putty layer is good), it can be polished directly with fine sandpaper and cleaned with a new primer and topcoat. Just fine.
4. Demolition of the old wall to complete the construction
The comprehensive construction is equal to the renovation, the engineering quantity is the largest, and it is suitable for the wall surface where there are many cracks, peeling and powdering. First of all, the wall should be completely removed to the cement layer. If it is a house that has not been renovated for a long time (such as before the 1980s), it needs to be removed to the surface of the brick wall, and then the entire wall should be refurbished: flat wall surface - solidified base - Brush interface agent - batch scraping three times water-resistant putty - wall polishing - last primer - two effects finish.
Second, what are the reasons for the wall peeling?
1, sun exposure, discoloration
The summer is hot. For buildings with large lighting area and buildings with insufficient air circulation and walls directly exposed to sunlight, the temperature is too high. The water-soluble salt crystals cause discoloration and fading on the surface of the wall, and the color is peeled off or even cracked. The temperature difference causes the surface of the wall to expand or contract, which also causes partial wall peeling.
Corresponding method: The sun-proof wall is made of blackout curtains when the sun is more powerful, and pay attention to the temperature reduction of the wall and the balance of the inner and outer room temperature; when the renovation is carried out, the high-quality latex paint with anti-aging and light resistance is used.
2, the wall is damp and peeled off
In one case, when the wall foundation is damp, if the paint is not completely dry, the paint is painted. Second, in the rainy and rainy season, the air moisture is large, causing the wall to be wet. Both of them are water infiltrated into the paint surface, causing the paint film to lose adhesion. Causes the skin to fall off.
Corresponding method: avoid the paint project when the humidity is high in spring and summer. If it is unavoidable, the spray gun method can be used to speed up the drying (the film is completely dry and the best effect takes about seven days); the wall that has been damp will be the original wall. Remove the clean powder and apply the glue on the wall to increase the adhesion of the putty. Then follow the normal process, pay attention to the wall and dry it before proceeding to the next step. The putty is best to use waterproof and wall paint. Changed to elastic scrub resistance.
3. Improper discoloration of construction paint
Strong dry paint should not be applied at the same time as the paint. If the polyurethane paint series is applied at the same time as the paint, the TD1 component contained in the paint will discolor the latex paint.
Corresponding method: After the paint is applied for two days (25 ° C temperature), the latex paint is applied again, or after the latex paint is completely dried (25 ° C temperature), paint is applied after 7 days.
4, the surface of the wall is mildewed and spotted
Mildly moldy, use mildew water, 84 disinfectant or bleaching solution (diluted to 5-10%) to wipe the painted wall surface; if the water seepage wall causes serious mold, remove the floating debris along the crack joint, toward After filling the sealing material in the seam, brush the waterproof coating twice along the wall. If it is the temperature difference, look at the wall of the insulation layer (there is a hole in the wall). Nothing can be added. If it is possible, the insulation material will not work, and the replacement will be used to cure the problem.
5, there is a sag when dry paint
A vertical or beveled coating may form a flow mark or a thickening of the lower edge during the painting and drying process. A simple remedy is to completely dry the film, wet-polie and polish it with a fine sandpaper, or use fine sandpaper. Wet grinding, and re-spraying, to cure this mainly includes several aspects: correctly set the symptomatic spray gun, the correct spraying technology, the applicable thinner, improve the temperature of the spray chamber, keep the spray surface clean, etc., so it is recommended to use professional spray than DIY More secure, first of all pay attention to the correct spraying technology.
In the wall surface that appears after the renovation, there are many cases of powdering, peeling, fading, etc., which are the most common and difficult to use wall decoration problems. The wall problem solving methods caused by different reasons are also different. The above is the reason why Xiaobian introduced the wall peeling and how to deal with the wall surface. If you want to know more about the decoration information, please continue to pay attention to the decoration home network.
More related wonderful reading:
The easiest way to dispose of the wall, the reason for the wall peeling
What should I do if the wall is peeled off? Wall peeling treatment method
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