How to repaint the lime wall?

If you want to paint with lime, buy some quicklime, add water and filter with gauze to make hydrated lime. Note that quicklime will boil the water after adding water, and be careful not to burn it! You'd better go to someone else's house to get some ready-made hydrated lime, because you don't need much, and lime generally won't give you a few pounds to sell. If there are not many holes, directly add a little water with slaked lime, make it into mud, stuff it into the holes, and scrape the surface. If there are many holes, you can fill them with coarse sand first, and then scrape the surface with lime slurry. Then add a small amount of water to other slaked lime (subject to brushing the wall after mixing) to make lime slurry, then brush all the walls with a wall brush, and brush them for the second time after the walls are dry. Generally, a wall brush can be brushed from beginning to end, and then brushed again from beginning to end. If the lime slurry is too thin, brush it for the third time, and you can brush it for the fourth time until the wall is white.

Now, lime is generally not used to paint walls. There is a kind of powder called feldspar powder or something. When you go to the building materials store, they will tell you what materials to use, what tools to use and how to do it. Very simple, as long as you have the strength, you don't need any technology. If you want to draw, it will be more troublesome and a little technical. An inexperienced brush is not good.