How to construct the putty paste on the wall Because of the different roughness of the concrete wall, it must be treated. The pockmarked surface and the external angle are not smooth, and edema, defects and depressions must be trimmed and leveled. On the concrete floor, the flat foundation must be supported manually with a wire brush, and the dust on the surface of floating sand must be removed. Cement mortar paper ash surface, surface base should be dry and firm (no floating soil oil).
Grass-roots repair:
How to construct wall putty paste, concrete ceiling board and cleaning (the surface must be flat). The ratio of emulsion gypsum cellulose aqueous solution (concentration: 5%) to gypsum putty (weight ratio) = 100: 5-6: brush 60 sodium hydroxide solution and 5% sodium hydroxide for several times, and the time in the repainting solution is concentration. After brushing, wait to dry before proceeding to the next step.
Application of adhesive (cream);
Before putty is sprayed with adhesive 15-20, the coating must be uniform, and adhesive cannot be sprayed.
How to construct wall putty paste? After the problem of repairing and leveling is solved, focus on polishing, recycling dry putty, and polishing.
Squeeze the putty twice, wait until the first time is dry, then brush it for the second time. Generally speaking, it needs to be brushed at least twice. The surface not only needs to be flat, but also needs to be uniform and textured. Otherwise, the color depth does not match, which will affect the decorative effect.
Put the putty on the wall, and let's see its composition.
Building gypsum powder: the characteristics of special base material meet the requirements of GB9776- 1988 and meet the fineness requirements. Strength and water resistance test 120 days, above 3MPa, flexural strength less than 1%, CaSO4.2H2O gypsum powder. HF2000 water-soluble anti-crack rubber powder (emulsion) is white-gray powder, which is easy to dissolve in cold water and disperse. The function of this product is to endow the slurry with moisture retention and crack resistance, and make the putty easy to scrape.
HF reinforced composite retarder: light yellow powder, which can improve the delay and slurry settling time, can not meet the construction requirements and reduce the strength of gypsum.
Bentonite has thickening effect, and calcium-based soil can generally be used to improve the thixotropy of putty slurry.
Talcum powder (or white powder): The main function is to improve the structure of the slurry, make the putty easy to scratch, increase the surface smoothness and reduce the cost.
These are all about how to construct the wall putty paste and how to make it. I wish I could help everyone.