How to repair the burnt wall?

1. After the white wall of latex paint is blackened by fire, the old wall surface should be polished first, and then the exterior wall sealing primer should be applied after cleaning, and then the interior wall finish paint should be brushed. 2. When using sandpaper to polish the wall, it is recommended to use sandpaper with different thickness. 3. For the first time, cut the sandpaper into the palm size and polish it with the coarsest sandpaper. The second time, when the wall feels different, replace it with the finest sandpaper. 4. When painting, paint and water can be diluted at the ratio of 5: 1.

Related knowledge science:

1. If it is a wall that has been dusty for a long time, or has slight stains, you can gently wipe off the dust on the wall with a soft cloth and clear water.

2. If you encounter a strong oil stain, you can first polish it with fine sandpaper, and then evenly apply it to the rag with the diluted multifunctional cleaner. Be careful not to wipe a large area when erasing.

3. If there are stains or slight scratches on the wall of latex paint, you can use a soft wet cloth and apply a proper amount of detergent, or apply toothpaste with water and gently wipe it.

4. If the stain area is large or the scratch is serious, you can prepare some white shoe polish, evenly spread it on the scratched surface, and then dry it.

5. Pencil marks or colored crayon scratches on the wall. Just roll gypsum into powder or find some calcium powder, wet it and smear it on the cloth, and you can erase the handwriting of pencils or colored crayons on the wall.

6. Such as tea, coffee and beer. If you accidentally spill it on the wall, you can first clean it with dilute potassium bicarbonate solvent, and then rinse it with clear water. If it is ink, it needs to be washed with dilute hydrochloric acid solvent first, and then washed with clear water.