Barely into a figure of eight
Scrape the width of the gap with a putty knife and scrape it into a figure of eight with a wide outside and a narrow inside.
stop a gap
Fill the gap with gypsum block dry powder. The depth of gap filling is not less than 30-40mm, and it is not necessary to fill the wall, which is lower than the wall1-1.5 mm.
Stick glass cloth or kraft paper strips.
Brush the gap with 108 glue and stick glass cloth or kraft paper strips.
Paint the wall
Scrape 82 1 putty for 2-3 times to make the original wall smooth, and then polish it with sandpaper after drying. Adjust the wall coating. Brush the sample first after coating adjustment. Compared with the wall color after drying, the color is close and the color difference is not big. Then paint the wall.
wallpaper
Wall cracking is an international problem, and there is no radical solution. If you care, put wallpaper on the wall, at least it can hide it.