Coating technology: Construction Technology of exterior wall coating with elastic sand scraping effect

Key tips: 1 Exterior wall coating construction process: Base surface treatment → putty construction → primer construction → main coating construction → finishing coat construction 2 Exterior wall coating construction (1) Base treatment: Flatness inspection: carefully check the flatness of the wall with a 2m guiding rule Spot patching: holes or obvious depressions shall be patched with cement mortar, and those not obvious shall be patched with putty Sanding: use a grinder to make obvious protruding parts and repaired parts 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 Coating home news: 1 Exterior wall coating construction process: base treatment → putty construction → primer construction → main coating construction → finishing coat construction 2 Exterior wall coating construction (1) base treatment: flatness inspection: carefully check the flatness of the wall with a 2m guiding rule Spot patching: holes or obvious depressions shall be patched with cement mortar, and those not obvious shall be patched with putty Sanding: use a grinder to grind the obvious protruding part and the repaired part to be ≤ 2mm Dust removal and cleaning: use a brush, blade, etc to remove wall adhesion and floating dust Water sprinkling: if the base surface is too dry, spray water to wet it first, and the wall surface shall be wet without open water After the base surface is repaired, there is no floating dust and other adherents, and the next process can be started (2) Putty Construction: ① construction proportion: the proportion of putty and water is 40 kg material plus 14-16 kg clear water Take a clean bucket, if the fixed amount of water is poured into the dry powder and stirred, use the electric stirring rod to stir for about 3-5 minutes until there is no obvious particle, and leave for 3-5 minutes, then coating can be carried out ② Construction method: after the batch is fully coated, it shall be leveled with the batch knife, and dried slightly Generally, it shall be 3-4 hours (sunny day), and carefully sanded with more than 180 × sandpaper to remove the batch knife mark and joint mark ③ Maintenance: after the putty construction is completed, it can be sanded and watered when it is dry and white, and the interval between two maintenance is 4 hours ④ The surface is flat and free of any batch marks Dry for at least 24 hours before entering the next process (3) Bottom coating construction: ① construction method: roll coating Roll coating evenly once ② Roll coating shall be uniform without missing coating After 6 hours of drying, the next process can be started (4) Sand grain paint Construction: ① construction ratio: Paint: water = 1:0.05 (appropriate amount) to be adjusted according to the actual situation on site ② Construction method: batch coating (spraying) Clean the windowsill and dust on the surface of the line at the front of construction ③ The batch coating is even, the color is uniform, and there is no flower through the bottom After 12 hours of drying, the next process can be started (5) Finishing coat construction: ① construction method: spraying The flat coating effect shall be operated according to the requirements of the sample plate It must survive at one time and eliminate rework ② The spray is even, without blooming, and the effect meets the requirements of the sample 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,