1. The cause of cracking and warping of the wall skin.
1.Temperature change: Due to temperature change, the building material expands and contracts coldly, which causes the wall skin to crack and warp.
2.Humidity changes: If the wall is damp, the evaporation of water during the drying process can cause the wall skin to crack and warp.
3.Improper construction: Failure to operate in accordance with the specifications during construction, or poor material quality, will lead to cracking and warping of the wall skin.
4.Wall material problems: If the wall material is not of good quality or aging, it will also cause the wall skin to crack and warp.
Second, the steps to repair the cracked and warped wall skin.
1.Clean the wall skin: First of all, you need to clean the upturned wall skin, including dust and impurities around the wall skin. It can be cleaned with a broom or vacuum cleaner, or wiped with a damp cloth.
2.Primer: Apply primer to a clean wall, the primer can protect the wall and prevent moisture from penetrating. Water-based primers or latex primers can be used.
3.Sticker towels: Sticking paper towels on the wall can prevent the repair material from being applied unevenly, and at the same time, it can also increase the water absorption of the wall, so that the repair material can better bond with the wall.
4.Apply the repair material: Apply the repair material evenly to the wall, starting from the cracks and extending around until there are no cracks in the entire wall. Water-based or latex repair materials can be used.
5.Scraping: After waiting for the repair material to dry, use a scraper to scrape the wall flat so that the repair material is flush with the wall.
6.Coloring: Finally, you can apply the same color paint as the original wall on the repair material, so that the repair area is consistent with the surrounding wall. If you don't want to apply color, you can also apply a layer of protectant directly to prevent the repaired area from being affected by external factors.
3. Precautions.
1.Keep the wall dry and clean during the repair process to avoid the effects of moisture and dust.
2.When applying the primer, be careful to apply it evenly and avoid spots or streaks.
3.When applying the repair material, it should be appropriate, not too much or too little, so as not to affect the repair effect.
4.Pay attention to the force and direction when using the scraper, and do not squeeze out the repair material.
5.If you need to apply a protective agent, you should choose the best protective agent so as not to affect the repair effect.
In short, repairing cracked wall skin warped requires patience and care, operating according to the prescribed steps, and paying attention to every detail in order to achieve a perfect repair effect.