How to deal with the powder on the living room wall? Comprehensive analysis of causes and solutions
Recently, home decoration and maintenance have become one of the hot topics, especially wall problems that occur frequently. Many netizens reported that the living room walls appeared to be "chalkified", which directly affected the appearance and living experience. This article will combine hotspot data from the entire network in the past 10 days to analyze the causes of wall chalking and provide practical solutions.
1. Top 5 most popular household issues on the Internet (last 10 days)

| Ranking | keywords | Search volume (10,000 times) | main focus |
|---|---|---|---|
| 1 | Powder falling off the wall | 18.7 | Repair methods, preventive measures |
| 2 | Ceramic tile hollow | 15.2 | Detection skills, maintenance costs |
| 3 | Formaldehyde exceeds the standard | 12.9 | Quick formaldehyde removal, environmentally friendly materials |
| 4 | Waterproof layer cracked | 9.4 | Leak repair process and material selection |
| 5 | The floor is lifted | 7.8 | Humidity control, renovation solutions |
2. Four common causes of wall chalking
1.Improper handling at the grassroots level: Floating dust or old coatings are not thoroughly cleaned before construction, resulting in insufficient adhesion.
2.Material quality issues: Inferior putty powder or paint contains insufficient glue and is easy to powder and fall off.
3.Humid environment: During the rainy season or waterproofing failure, the wall surface will become damp, causing alkali return and powdering.
4.Construction process errors: The topcoat is applied before the putty layer is completely dry, or the dilution ratio is inappropriate.
3. 5 steps to solve the problem of chalky walls in the living room
| steps | Operation content | Tools/Materials | Things to note |
|---|---|---|---|
| 1 | Remove powdery layer | Blade, sandpaper | Need to be removed to a solid base |
| 2 | Apply sealer primer | Penetrating wall fixing | Choose alkali-resistant products |
| 3 | Scratch water-resistant putty | N type putty powder | Construction in 2-3 passes |
| 4 | polished smooth | 240 grit sandpaper | Side light inspection |
| 5 | Apply topcoat | latex paint | It is recommended to "one base and two sides" |
4. Three key points to prevent wall flouring
1.Choose formal materials: Look for coatings that meet the GB/T 9756-2018 standard, and putty must comply with JG/T 298-2010.
2.Control the construction environment: It is recommended that the temperature is 5-35℃, the humidity is lower than 85%, and construction in the rainy season should be avoided.
3.Regular maintenance inspections: Check the wall surface with a hygrometer every six months, and repair it in time if it is found to be partially powdered.
5. Effective emergency response methods tested by netizens
According to the measured data on social platforms, you can try to temporarily deal with slight powdering:
-White vinegar cleaning method(For alkaline reversion): Wipe with 1:3 vinegar and water and rinse with water.
-wall repair paste(Small range): Sanding after scraping
-Tile protective film(Transitional period): Paste dustproof and waterproof
Note: The above methods are only suitable for temporary disposal. A complete solution still requires professional construction.
Through systematic analysis and scientific treatment, the problem of chalky walls in the living room can be completely cured. It is recommended that owners choose DIY or hire a professional team according to the actual situation to ensure that the living environment is comfortable and beautiful.
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