How to leave no trace in gypsum leveling

1. First deal with the cracked part: finish the splayed seam with wallpaper knife, fill it with plaster brush glue, dry it and paste it with kraft paper;

2. After the multi-purpose primer is dried, properly clean the wall surface, evenly roll-coat white latex on a large area with a roller, and lay a glass fiber grid on the wall surface, and the seams of the two pieces of cloth must overlap;

3. The overlapping part shall not be less than 50 mm. If it is an external wall with internal insulation, it must be pasted with genuine cloth.