Putty is a kind of decorative material on the surface of a smooth wall. It is a thick paste-like paint, and it is an indispensable step before painting paint. The role of putty is to eliminate the surface defects of the base layer and improve the flatness of the base layer. The construction of putty is good or bad, affecting the quality of future decoration. Next, Xiao Bian introduced the putty step and the selection of putty materials for everyone. Putty step 1. Grassroots treatment: Due to various reasons, such as concrete floor slabs, materials, and partitioning agents, the flatness of the wall surface is relatively poor, and pores, honeycombs, angles of yin and yang, and bulging, etc. Smooth and smooth, concave to fill up. For prefabricated concrete floor slabs and slab joint bases, it must be brushed again by a special person with a wire to remove dust, sand, dust, and dirt from the surface. For the cement mortar paper ash surface layer, it is required to dry and dry the surface base layer, and it is solid and clean (no floating soil oil). 2. Grassroots repair: After the concrete roof and board seams are cleaned, the gypsum putty is filled and pressed with a steel scraper on a relatively large defect area such as a honeycomb. The horizontal surface is scraped and scraped again. scratch). The ratio of gypsum putty (weight ratio) was gypsum:emulsion: cellulose aqueous solution (concentration 5%)=100:5 to 6:60. Brush fire alkali aqueous solution: brush with 5% concentration of alkali solution for two times, if you use a 10% concentration brush again. Rinse with brush immediately with water and allow to dry before proceeding to the next procedure. 3, coating adhesive: We will spray glue before the first batch of putty, spraying must be uniform, can not have a floor spray, the glue ratio is: water: emulsion = 100:15 ~ 20. The putty shall be scraped back and forth with a steel scraper. Pay attention to the up and down and left and right joints. Clean between the two scrapers. Do not allow fins to be putty. Prevent dusting or mixing with sand or other debris when applying putty. The ratio of white to putty (weight ratio) was large white powder: Talc powder: Cellulose solution (concentration 5%): Emulsion=60:4o:75:2~4. 4, repair grinding and putty survival: After the first putty scraping, the site after the first repair should be reviewed, if there is a problem, in the collapse of the site with putty to make up for leveling, after the putty is dry, sanding, grinding Ping, sweep the net; approved putty must be carried out twice, until the first putty dry after the second batch, generally requires at least two times to survive. After the putty is approved, the surface is required to be flat and the texture texture is uniform, otherwise, the inconsistency of the color depth is likely to occur, and the decoration effect is affected. The use of putty The usual putty batches are first slaked with lime, and then batched with ordinary putties. This way, although it can save money, it has buried hidden dangers. This product is suitable for the base layer treatment of GRC board, ceramic board and roof board. The base material is cement mortar, cement press board, gypsum board and so on. Can also be based on user requirements supporting different grades of interior wall paint. Production process of low-cost environmental protection putty powder (paste) Latex paint is not only applied to the interior and exterior wall decoration of the construction project in China, but the construction putty used with it also becomes an important material for the building wall decoration. Although the construction putty is only one The grass-roots processing material, but it must be given great attention. Putty material selection 1, carboxymethyl cellulose: white floc, strong moisture absorption, soluble in water, mainly in the putty to improve the viscosity of putty. 2, Dabai: There are two kinds of block and powder, white and pure white color requirements, fineness requirements over 8O screen. 3, gypsum: The use of plaster white powder, gas-hardening cementitious materials, not damp and rain, is strictly prohibited using damp and agglomerated gypsum. 4, talcum powder: soft creamy and light. 5, polyvinyl acetate emulsion (referred to as emulsion): This emulsion is to prevent precipitation of other materials, prevent putty drop, improve putty operation performance. Editor's summary: The selection of the putty step and the selection of putty materials are introduced here, and we hope to help everyone. 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