What is the construction technology of exterior wall rock flake paint?

1. Repair: Before use, use 1: 3 cement mortar (or polymer cement mortar) to repair defects such as missing edges, corners and holes in the matrix.

2. Cleaning: Dust and powder can be cleaned with broom, brush and high-pressure water, and grease can be cleaned with neutral detergent; Mortar-Remove with shovel, scraper, etc. Mould-outdoor high-pressure water washing, clear water rinsing until dry.

3. Fill the putty and scrape the putty locally: if the wall is smooth and smooth, putty is not needed; Putty should have good strength and durability besides being easy to scrape and polish. In the construction of joint filling and local putty scraping, thin batch is required instead of thick brush. Putty is required to have good cohesiveness, durability and water resistance.

4. Smoothing: Grinding must be carried out at the grass-roots level or after putty is dried, and wet grinding is not allowed, so as not to affect the operation by sticking sandpaper. The thickness of sandpaper depends on the hardness of the polished surface. Coarse sandpaper will produce sand marks, which will affect the final decorative effect of the coating. When polishing, first use coarse emery cloth or grinder to polish, then use fine emery cloth to polish, and pay attention to the smoothness of the surface. Remove the surface dust immediately after grinding, so as to facilitate the construction of the next process.

5. Glass fiber cloth: Use uniform grid density, and don't use too dense glass fiber cloth for paving.