How to repair the dirty wall?

The situation of dirty walls is particularly diverse. Children's pencil graffiti is gently wiped with an eraser; For the soup of vegetable juice and food, wipe it with a rag dipped in cleaning agent; Children's water color printing and other traces can be polished with sandpaper, and the wall surface can be painted with the same latex paint as the original wall surface.

Related popular science knowledge:

1, wall latex paint is waterproof. Water stains and stains in daily life can be wiped with a rag. Deep stains can be sprayed with detergent on the wall with a watering can and then wiped with a soft rag.

2. For the glue marks on the wall, heat them with a hair dryer. After the glue mark becomes soft, you can wipe it along the edge with a rubber.

3. Mixing baking soda with edible oil in the ratio of 1: 1 and sticking the mixture on the wall can effectively remove the traces left by the wall glue.

4. If there is a stain on the wall, it can be fused with detergent and white vinegar. Debug according to the ratio of 1: 1. After debugging evenly, you can gently wipe it with a soft rag to eliminate the vegetable soup on the wall.

5. When the dirt on the wall is particularly serious, it is necessary to renovate the wall, clean the original wall with sandpaper, deeply polish the serious oil stains, level the wall with putty paste, and then brush it with brand-new latex paint.