Wall construction | strictly grasp the fine construction of exterior wall coating to produce fine work

Core tip: the quality of external wall painting is like the first impression of a person, and the image of good impression points will be improved a lot The construction of exterior wall coating is a strict project, which not only requires the beautiful wall painting, but also requires the standard wall painting quality The following will explain the construction process of exterior wall coating for you, so that you can understand the specific process of exterior wall coating construction more clearly First, construction conditions 1, to ensure that the basic pH value of the base is less than 9, and the humidity is less than 8% 2 Ensure that the wall surface is flat and clean, free of water seepage, cracks, blistering, hollowing and other phenomena, and free of powdered loose matter, grease and other impurities, Application scope and advantages of roller ceramic coating Recommended introduction: the surface of ceramic rubber plate used for roller ceramic coating is cast into durable rubber plate by hundreds of independent small ceramic pieces Each ceramic piece has raised characteristics Under general conveyor belt pressure, thousands of unique cast bumps can produce positive traction, prevent slipping and extend the service life of conveyor belt roller At the same time, the bottom layer adopts high-quality rubber, which has strong elasticity and can play a good impact resistance role The scope of application of roller ceramic coating is one three six 83857180 (the same as V) 1 Roller coating in extremely harsh working environment 2 The belt joint is not suitable for fixing with iron buckle; 3 It is suitable for leather Paint Home News: the quality of external wall painting is like the first impression of a person, and the image of good impression points will be improved a lot The construction of exterior wall coating is a strict project, which not only requires the beautiful wall painting, but also requires the standard wall painting quality The following will explain the construction process of exterior wall coating for you, so that you can understand the specific process of exterior wall coating construction more clearly First, construction conditions 1, to ensure that the basic pH value of the base is less than 9, and the humidity is less than 8% 2 Ensure that the wall surface is flat and clean, free of water seepage, cracks, blistering, hollowing and other phenomena, free of powdered loose matter, grease and other impurities, and that the internal and external corners and corner lines are dense 3 As the exterior wall coating belongs to water-based coating, the requirements for construction conditions are relatively strict Generally, the ambient humidity shall not be higher than 85%, and the construction and maintenance temperature shall be higher than 5 ℃ Because the humidity is too high, the paint film is hard to dry completely and cannot form film, and the temperature is too low, it is easy to cause the paint film to be powdered and cracked 4 Weather factors must also be considered in the construction of exterior wall coating It shall not rain for 12 hours before painting to ensure the base course is dry There shall be no rain within 24 hours after painting to avoid damaging the paint film Second, construction method 1, repair of hollowing: if it is a local hollowing, it is only necessary to inject epoxy resin with low viscosity; if there is a large area of hollowing, it is necessary to remove all the hollowing parts and make the base again Cracks: for small cracks, putty can be used for repair, and cement sand paper can be used for grinding after drying; for large cracks, clean them first, then make a waterproof layer, and then fill in cement mortar Holes: for holes less than 3mm on the surface of the base course, polymer cement putty can be used for leveling For holes larger than 3mm, cement mortar is needed for repairing 2 The cleaning mortar can be removed by shovel and scraper; the dust can be cleaned by broom and brush; the mold can be washed by outdoor high-pressure water and washed with water to dry; the grease should be removed by neutral detergent 3 The quality of putty filling and local puttying must be guaranteed During construction, it is better to apply the putty thinly rather than thickly In addition, if all aspects of the wall conditions are good, you can use no putty 4 To grind flat, use a grinder or a coarse emery cloth for grinding, and then use a fine emery cloth for grinding Attention shall be paid to grinding after the base surface or putty is completely dry 5 When scraping putty, use even force, master the inclination of tools, and ensure the putty is full and even 6 The primer shall be diluted in strict accordance with the specified proportion to ensure uniformity The primer shall be applied evenly from top to bottom to ensure no leakage 7 The first coat can be applied only after the surface of the first coat is dry and hard The first coat is mainly applied to improve the covering power and adhesion and increase the fullness The construction shall be carried out from top to bottom 8 The second finishing coat can be applied 24 hours after the first finishing coat The second finish mainly plays a decorative role to reduce the environmental damage to the wall The second finishing coat is required to be painted evenly, and the color shall be consistent after construction, without sagging and bottom leakage Third, quality requirements after the completion of the construction of exterior wall coating, there are strict requirements for the quality of the process: 1 There shall be no leakage, bottoming, powder dropping, peeling, anti alkali, color biting and other phenomena 2 It is required that the overall color of the top coat shall be consistent and even 3 No sagging, pimples, brush marks, etc Although the construction process of exterior wall coating is complicated and complicated, the fine work is meticulous The decoration owners should also firmly grasp the construction method of exterior wall coating, so that they are not afraid of the decoration company's cutting corners and affecting the construction quality 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,