Coating knowledge: gypsum putty construction method and precautions

Core tip: gypsum putty is mainly made by mixing gypsum powder with water and glue and used for joint filling It is very common in decoration Let's talk about the construction method and precautions of gypsum putty: construction process standard of puttying project 1 Scope of application this standard is applicable to puttying of concrete and plastering surface, gypsum board joint, wood surface, metal surface and other base courses of construction engineering 2 reference standard code for construction of Residential Decoration Engineering (gb50327-2001) code for acceptance of construction quality of Building Decoration Engineering (GB50210-2001) building interior Paint agent, top 10 Chinese wall paint brands Recommended introduction: interior wall paint and exterior wall paint can achieve beautiful, clean and pleasant effects, but the effects in different environments are different, so the color of the paint will be different There are ten brands of Chinese paint, ten brands of global paint, ten brands of Chinese wall paint, and ten brands of Chinese paint, Famous trademark of Chinese paint and coating In private rooms, most of us choose according to our own personality, personal hobbies and living habits The younger generation will choose the interior wall paint with rich colors and bright colors, while the older ones will have some working experience Paint Home News: gypsum putty is mainly made by mixing gypsum powder with water and glue and used for joint filling It is very common in decoration Let's talk about the construction method and precautions of gypsum putty: construction process standard of putty project 1 applicable scope this standard is applicable to construction engineering concrete, plastering surface and gypsum board Putty shall be applied to joints, wood surfaces, metal surfaces, etc 2 refer to the code for construction of standard residential decoration and fitment (GB50327 - 2001) specification for quality acceptance of building decoration and Decoration Engineering (GB50210 - 2001) indoor building putty (JGJ/T3049) 3 term polyvinyl acetate putty - mix polyvinyl acetate emulsion (Bai Rujiao) with filler (talcum powder or white powder) and carboxymethyl cellulose solution Used for puttying concrete surface and plastering surface Polyvinyl acetate cement putty - mixed with polyvinyl acetate emulsion, cement and water Apply putty to plastering surface of exterior wall Gypsum putty - mix tung oil and gypsum powder, then add water and mix them It is used for puttying the wood surface and the cleaned wall Gypsum plaster putty - gypsum powder: sg791 glue = 1:0.6-0.7 (weight ratio), used to repair gypsum board joints Water powder putty - mix with bone glue Taibai powder and add some pigment and water to mix evenly A moistening powder varnished with wood Oil putty - the mixture of cooked tung oil and rosin water, and the addition of too much white powder Lubricating oil powder for varnish on wood surface Gypsum putty for metal surface - it is made of gypsum powder, tung oil, oily putty or alkyd putty, primer and water, and is used for repairing putty for metal surface Water resistant putty - the market has finished product supply, used for indoor putty with waterproof requirements 4 The filler, adhesive, paint, coating and other materials used in the deployment of putty shall be environmental protection products certified by the state and Beijing Municipality, and the materials used shall have product qualification certificate It is strictly prohibited to use materials that are explicitly eliminated by the state 5 construction preparation 5.1 operation condition 5.1.1 plastering operation has been completed 5.1.2 after the treatment of equipment pipe holes on the wall surface, the wall surface is dry, and all kinds of through wall holes are plastered 5.1.3 the moisture content of concrete wall base shall not be greater than 8% 5.1.4 the surface moisture content of wood base shall not be more than 12% 5.1.5 the ambient temperature shall not be less than + 10 ℃ and the relative humidity shall not be more than 60% 5.2 main machines and tools: big and small slurry buckets, brushes, pens, knives, rubber scrapers, 0 × 1 × sandpaper, 50-80 mesh steel wire baskets, big and small buckets, rubber tubes and other sporadic accessories, putty boards, ox horn boards, clean wiping cloth, etc 6 operation process 6.1 concrete and plastering surface brush, coating base, putty, 6.1.1 material preparation: gypsum powder, large white, carboxymethyl cellulose, polyvinyl acetate emulsion, water resistant putty, interface agent, etc 6.1.2 for the base course treatment, first spray water to wet the places where the walls are lack of edges and corners, and the uneven parts are more serious, brush a layer of cement slurry mixed with interface agent, and then use 1:3 cement mortar to smooth, the thickness of each repair shall not exceed 9mm, and the next process can be carried out after the cement mortar is finally set Attention shall be paid to that the repair mortar must be firmly bonded with the base without peeling, hollowing, cracks and other defects 6.1.3 mixing ratio of putty to (weight ratio) indoor polyvinyl acetate emulsion: white powder: 2% carboxymethyl cellulose solution =1:5:3.5; outdoor polyvinyl acetate emulsion: cement: water =1:5:1; indoor waterproof kitchen, toilet and other parts of the application of water resistant putty 6.1.4 repair the putty on the base layer, and use the putty to repair the damaged parts such as the wall, door and window, honeycomb, pockmarked surface, wind crack and joint gap respectively, and grind them with sandpaper after drying 6.1.5 the wall is fully puttied, and the number of times of puttying on the wall is determined by the project quality standard and the flatness of the base course, generally three times For the first time, the rubber scraper shall be used for full horizontal scraping, one scraper shall be followed by one scraper, and no stubble shall be left at the joint The scraping shall be finished cleanly at the end of each scraper After drying, it shall be polished with No 1 sandpaper, and the floating putty and spot shall be polished to clean the wall For the second time, the rubber scraper shall be used for vertical full scraping in the same way as the putty for the first time After drying, the putty shall be ground and cleaned with No 1 sandpaper For the third time, use rubber scraper to make up the putty, use steel scraper to fully scrape the putty, and level and polish the base course After drying, use No 0 sandpaper to grind and polish, the surface is flat and smooth, the line angle is straight, and pay attention to the sandpaper to avoid missing grinding or wearing through the putty 6.1.6 after the putty is scraped, the next process construction shall be carried out after it meets the requirements Precautions for gypsum putty Construction: 1 The construction temperature is greater than 5 ℃ 2 If the humidity is too high in rainy days, the construction shall be suspended Gypsum putty has the characteristics of rapid solidification, and its use can save emulsion paint, which is very common in home wall decoration Gypsum putty construction methods and precautions are introduced here, hoping to help you [focus on WeChat official account "paint net"; pay attention to surprises, scan code to see if your husband is selling paint.. "Paint group: 92525666] coatings house is focused on coatings, diatom mud, paint and coatings, coating technology, fire retardant coatings news information and coatings, diatom mud, paint and coating, coating technology, fire retardant coatings decoration knowledge and decoration effect map.