What are the steps of interior wall painting?

1, ready:

(1) The external wall ash cake shall be made in two times, and the ash cake made for the first time shall be flush with the rough surface, and the thickness of the thinnest part shall not be less than 7mm. The convex windowsill and the side plate ash cake keep up at the same time.

(2) After the main body is accepted, a layer of concrete interface agent shall be painted on the surface of concrete beams and columns.

(3) The screw holes of the external wall must be blocked with building ointment and sealed with external cement mortar.

2, wipe the bottom ash:

(1) Before plastering, the mortar on the surface of brick wall and concrete should be shoveled off and watered overnight. When watering, the dust on the surface of brick wall and concrete should be washed clean and poured thoroughly.

(2) Because the local thickness exceeds 20MM when the bottom is rough, it must survive by layers. The thickness of the first scraping should be controlled within 20 mm, and it should be pressed hard to prevent the bottom from being rough. The second scraping should be carried out the next day.

3, the second time ash cake, thickness control in 6 ~ 8 mm:

The external wall must be decorated with vertical and horizontal windows, with grid lines and vertical holes left on the wall. First of all, air conditioning holes, smoke exhaust holes and water heater holes on the external wall should be installed, and the gaps should be filled with fine stone concrete or cement mortar. At the same time, window frames should be installed, and grid lines should be pasted at the elevation position, and powder protection should be carried out for the external corner, windowsill, window cover, side plate of bay window and external wall foot.

4, wipe the middle mortar:

Before plastering, check the smoothness of the bottom for cracked feet, cut off the heavy powder at the cracked feet, and water and wet them. face

5, the surface fine hair:

Screen out the fine sand with water, add proper amount of glue to the mortar, and nap with a sponge. The fluff should be even and straight.

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