Coating knowledge: puttying construction process

Core tip: according to the different construction of the base course: the technological process of puttying concrete wall is: base course treatment - base course repair - brush caustic soda water solution - apply binder (slurry) - scrape white putty - repair and Polish - putty survival The technological process of puttying concrete floor and floor joint is: base treatment base repair & MDAS Paint knowledge how about Akzo Nobel Powder Coating Recommended introduction: powder coating is a kind of coating with different form from general coating, which is in powder form It is a new type of coating, because of its own advantages and more and more known by people Let's introduce Akzo Nobel Powder coating Akzo Nobel Powder coating is a cost-effective coating solution, which can be applied to different kinds of products After the treatment of static electricity and fire baking, a tough and durable coating surface will be formed, with the least impact on the environment Since the introduction of this technology, powder coating has been able to continue to maintain the Paint Home News: according to the different construction of the base course: the technological process of puttying concrete wall is: base course treatment - base course repair - brush alkali solution - apply binder (slurry) - scrape white putty - repair and Polish - putty survival The technological process of puttying concrete floor slab and slab joint is as follows: base treatment - base repair - Fire alkali solution brushing - binder (slurry, glue spraying) - big white puttying - repair and grinding - puttying survival The technological process of applying putty on the surface of cement mortar and paper reinforcement is as follows: base treatment - applying binder (slurry) - scraping white putty - repairing and polishing - putty survival Construction according to the process flow: 1 Base treatment: cast-in-place concrete wall, due to many reasons such as floor slab, material, isolation agent, etc., the flatness of the wall is poor, and there are often air holes, honeycomb, pitted surface, internal and external corners are not smooth and bulged, so it is required to remove the convex part and make it smooth, and fill the concave part For the prefabricated concrete floor slab and slab joint base course, a special person must brush once with steel wire to remove the floating sand, pimples, dust and other debris on the surface For the cement mortar paper reinforced mortar surface course, it is required that the surface base course is dry, solid and clean (no oil dirt on the surface) 2 Base course repair: after the concrete top plate and slab joint are cleaned, fill and compact the gypsum putty with steel scraping board for the honeycomb and other large defect parts, horizontally plaster and vertically scrape once (the top surface with smooth surface can not be scraped) Gypsum putty ratio (weight ratio) is gypsum: emulsion: cellulose aqueous solution (concentration 5%) =100:5 ~ 6:60 Brush caustic soda solution: brush twice with 5% caustic soda solution, if brush once with 10% concentration Wash with clean water immediately after brushing, and then carry out the next process after drying 3, coating adhesive (juice): before spraying the putty, spray the glue first, and spray must be uniform There must be no leakage of glue to water ratio (weight ratio) for water: emulsion =100:15 ~ 20 Apply white putty: use steel scraper to scrape the putty back and forth Pay attention to the joint of upper, lower, left and right The two scrapers should be clean No floating putty is allowed When scraping the putty, it should be prevented from sticking or mixing with sand and other sundries Large white putty mixture ratio (weight ratio) is large white powder: talcum powder: cellulose solution (concentration 5%): emulsion =60:4o:75:2 ~ 4 4 Repair and grinding: after the first putty is scraped, the repaired part shall be rechecked If there is any problem, the collapsed part shall be repaired and leveled with putty After the putty is dry, it shall be polished, ground and cleaned with sandpaper 5 Putty survival: scrape the big white putty twice, and scrape the second time after the first putty is dry Generally, it is required to survive at least twice The surface is required not only to be flat but also to have uniform texture, otherwise it is easy to have inconsistent color depth, which will affect the decoration effect Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant coating news and coating, diatom mud, paint coating, coating technology, fire retardant coating decoration knowledge and decoration renderings,