How to deal with the white ash on the newly painted wall?

It is a very common phenomenon that newly painted walls appear white ash, which is often caused by building materials, construction technology, environmental humidity, construction temperature and other reasons. This situation not only affects the beauty of the wall, but also affects the durability of the wall. Therefore, if there is white ash after construction, it should be handled in time.

Generally speaking, there are the following methods to treat white ash:

1. Ash washing method

The ash washing method is to clean the impurities such as dust and sand in the mud and the water in the mud, and then brush it again after drying. Clean up the dirt and debris on the wall first, then splash water on the wall, wait for a few minutes, and then gently wipe it with a rag after absorbing the water.

2. Ash grinding method

This method is to use the lime layer on the wall as abrasive, so that the original lime is mixed with the newly painted paint to completely remove the lime. The method is to slowly polish the surface with sandpaper or grinder before the lime dries thoroughly, then remove the lime layer until the paint and gypsum layer are mixed evenly, and then clean the removed lime with water.

3. Secondary brushing method

When the secondary brushing method is adopted, brushing the wall white plaster shall be re-applied. The advantages of this method are simplicity, rapidity and easy operation. It is only necessary to coat a new layer of latex paint on the new paint after the white ash on the wall is dry. This method saves time and can be used to prevent the occurrence of white ash.

After lime treatment, measures such as raising ambient temperature, controlling relative humidity and selecting high-quality paint can be taken to prevent lime from getting on the wall. These measures can not only improve the aesthetics of the wall, but also increase its durability.

To sum up, whitewashing is a very common phenomenon when painting walls. After construction, we can choose the methods of ash washing, grinding and secondary brushing to deal with white ash. At the same time, before the wall construction, necessary measures should be taken to prevent the appearance of white ash. Only in this way can we ensure the quality of the wall and improve the aesthetics of the wall.