1. Prepare tools and materials-trowel, mobile putty board, putty powder and other tools and materials are needed to smooth the wall.
2. Clean the concrete wall-first remove floating ash, oil stains, cement slag and other sundries to ensure that the wall is dry and flat, so that putty can be pasted better. If there is an old paint layer on the wall, make sure that the old layer is basically flat. If it is uneven, it needs to be peeled off first and re-polished.
3, custom putty powder-according to the material of the wall, choose the appropriate putty powder, and add water according to the packaging instructions, stir into a suitable paste.
4. Start scraping putty-After putty powder is ready, apply putty evenly on the wall with a trowel. Push evenly from top to bottom and from left to right. Large walls need to be leveled separately, so as to grasp the time, and then do the next one after finishing one side, so as to ensure the full use of putty time and improve efficiency.
5. Handling details-When the putty foundation is laid, it is necessary to draw the exit line according to the actual situation. Generally speaking, a gap of about 1 mm should be left at the four corners of windows, doors, windows and switch sockets for post-processing. After the putty foundation is completely completed, gently polish the wall with clean advanced water sandpaper to smooth the rough, uneven and uneven places.
6. Dry and moisture-proof-after the putty is leveled, it needs to be dried and completely buried for three years. In order to prevent putty from cracking due to water, the excess water on the wall should be reduced as much as possible during construction, so as to prevent water, floating color and cracking on the wall due to the retention of water.
7, acceptance, leveling project after drying, acceptance. If qualified, you can proceed to the next operation, such as painting.
The leveling of wall putty needs to be handled according to methods and skills, so that the treated wall can be smooth and beautiful. The above are just some basic skills of wall leveling, and more in-depth skills and methods need to be mastered and summarized in practice.