Coating technology: interior wall coating construction technology

Core tip: construction sequence of interior wall coating Base course treatment, first full puttying, polishing, second full puttying, polishing, primer, first emulsion paint, polishing, second emulsion paint, cleaning Key points of interior wall coating construction 1 Base treatment a Requirements for base course: (1) The pH value of the base course shall be less than 10, and the moisture content shall be less than 8% and 10% (2) The surface of the base course shall be flat, overcast Shenyang steel structure fireproof coating construction expert punde Building Fire Engineering Co., Ltd Recommended introduction: since its establishment, Shenyang punde Construction Fire Engineering Co., Ltd has cultivated a group of professional construction teams with excellent equipment, rich experience and serious responsibility with advanced and scientific management methods and strict engineering quality assurance and after-sales service system It has undertaken a number of fire system installation projects, which has been praised by customers Every idea and special requirement of you will be fully considered by us and fully realized in the construction technology, which will become the cornerstone of our successful long-term development We are looking forward to your invitation, to provide you with quality services and high-quality technical support! All construction coatings have passed ISO9001 Paint Home News: the construction sequence of interior wall paint is base treatment, first full puttying, polishing, second full puttying, polishing, primer, first latex paint, polishing, second latex paint, cleaning Key points of interior wall coating construction 1 Base treatment A requirements for base: (1) pH value of base shall be less than 10, and moisture content shall be less than 8% and 10% (2) the surface of the base course shall be flat, and the internal and external corners and corner lines shall be dense and clear (3) the base course shall be firm, and if there are defects such as hollowing, looseness, blistering, sanding, cavity, crack, etc., it shall be treated (4) The surface shall be free of oil, dust, splashes, mortar flow marks, etc b Base treatment methods: (1) cleaning 1 Use cleaning tools to clean dust and other attachments 2》 the splashes and flow marks of mortar shall be cleaned with blade and wire brush 3》 Use 5% - 10% sodium hydroxide aqueous solution to clean the oil stain, mold release agent and other dirt, and then use clean water to wash them 4》 , hollowing, loosening, peeling, sanding, etc shall be cleaned with a blade, washed with clean water, and then repaired (2) Leveling and repair 1 Hollowing: cut with toothless saw, and then repair 2》 gap: according to different parts, different putty shall be used to embed and level small cracks, and sandpaper shall be used to level them after drying; for large cracks, the cracks shall be chiseled into "V" shaped gaps, cleaned and made a layer of waterproof layer, then filled with waterproof sealing paste, leveled with cement mortar after drying, and leveled with sandpaper after drying 3》 holes: holes less than 3mm on the surface of the base course can be leveled with polymer cement mortar; holes more than 3mm shall be leveled with cement mortar and leveled with sandpaper after drying 4》 uneven surface or joint dislocation: chisel the protruding part first, level it with cement mortar, and polish it after drying 5》 exposed reinforcement: chisel out the concrete around the exposed reinforcement head for about 10 mm, remove the reinforcement head, level it with cement mortar, and then polish it with sandpaper 2 After the surface of the full putty is cleaned, the putty is mixed with the diluted solution of vinyl acetate emulsion (mix ratio of 10:1) to fit the consistency, and the pitted surface, honeycomb, hole and incomplete part of the wall are filled with it After the putty is completely dry, the excess putty is first leveled with a knife, and then leveled with coarse sandpaper Puttying and polishing for the first time: when the large gap of indoor coating surface is filled and leveled, use the batch and inlay tools to fully scrape the emulsion puttying once All small sand holes and shrinkage cracks shall be fully scratched to the degree of compactness, flatness and neat line, corner and edge At the same time, it should be scraped along the wall in a smooth and horizontal manner, without missing scraping, joints should not be left with tenon, and attention should be paid not to stain doors, windows and other things After the putty is completely dry, use No 1 sandpaper to wrap the flat small board, polish the putty slag and uneven parts, pay attention to the uniform force and protect the edges and corners Clean with cleaning tools after grinding The second full puttying and polishing: the second full puttying method is the same as the first puttying, but it is required that this puttying and the previous puttying direction are perpendicular to each other, that is, the wall shall be vertically scraped along the wall, and the wall shall be further fully scraped and polished until it is flat and smooth The first coating: before the first coating, the surface of the base must be cleaned up When painting, it is advisable to use a brush arrangement The painting sequence is generally from top to bottom, from left to right, from horizontal to vertical, from edge, corner, small surface to large surface There is no residual coating at the internal corner, and the external corner shall not be wrapped with edges Re putty: after the first coating is dry, it shall be generally inspected once If there is any defect in the part, it shall be re putty once and scraped with a horn scraper to avoid damaging the paint film Polishing: after the putty is fully dried, the coating surface shall be polished with fine sand paper pulp, with light and even force, and the paint film shall not be worn through, and the surface shall be cleaned after grinding The second coating application and polishing method is the same as the first The third coating: the painting sequence is the same as that of the first coating, and the surface is required to be more beautiful and delicate, so the brush must be used When painting in large area, several people shall cooperate with flow operation to connect with each other 6、 Quality measures 1 Interior wall coating shall meet the design requirements 2 The knee membrane is firm 3、 The surface quality of the interior wall coating shall meet the following requirements: the quality requirements of the project are: powder dropping, peeling is not allowed to be missed, back alkali is not allowed to penetrate the bottom, undercut is not allowed to fall, lumps are not allowed to be colored, the color of the brush pattern is consistent, there is no sand hole, no brush pattern decorative line, and the color separation line is straight (pull 5 meter line, less than 5 Mira line inspection) The deviation is not more than 1mm for doors, windows and lamps Clean coatings home is focused on 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 effect map,