Paint knowledge | comprehensive analysis of exterior wall coating construction process

Core tip: the exterior wall coating is not only a kind of decoration, but also plays a role in protecting the exterior wall of the house Therefore, the construction technology of the exterior wall coating needs special attention Today, let's take a look at the overall analysis of the construction process of the exterior wall coating with the editor, for your reference Construction process of exterior wall coating - preliminary preparation for the construction process of exterior wall coating, first of all, the preparation work before shall be done well, first of all, the pH value of the base shall be below 9, and the humidity shall be less than 8%; the surface shall be flat, the internal and external corners and corner lines shall be dense, and the outline shall be clear; the wall surface shall be free of water seepage, cracks, hollowing, blistering holes and other structural problems No powdered loose matter, no oil, grease and 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: in today's life, the exterior wall paint is not only a kind of decoration, but also plays a role in protecting the exterior wall of the house Therefore, the construction technology of the exterior wall paint needs special attention Today, let's take a look at the overall analysis of the construction process of the exterior wall coating with the editor, for your reference Construction process of exterior wall coating - preliminary preparation for the construction process of exterior wall coating, first of all, the preparation work before shall be done well, first of all, the pH value of the base shall be below 9, and the humidity shall be less than 8%; the surface shall be flat, the internal and external corners and corner lines shall be dense, and the outline shall be clear; the wall surface shall be free of water seepage, cracks, hollowing, blistering holes and other structural problems No powdered loose matter, no oil, grease and other adherents Construction process of exterior wall coating - construction conditions as the exterior wall coating is water-based, the construction process of exterior wall coating is relatively harsh, the construction and maintenance temperature is higher than 5 ℃, and the environmental humidity is not higher than 85%, in order to ensure good film-forming Low temperature will lead to the pulverization and cracking of the paint film High ambient humidity will usually make the paint film dry for a long time, and eventually lead to poor film formation Weather factors must be considered in the construction of exterior wall Before painting, it does not rain for 12 hours to ensure the base is dry After painting, it cannot rain for 24 hours to prevent the paint film from being damaged by rain Construction process of exterior wall coating - process 1: treat the base course, carefully clean the dust and other sundries on the surface of the base course, and if there are uneven places, cement shall be used to smooth them, and putty powder shall be used to fill them 2, brush the bottom glue, found that the wall is relatively loose, then first clean up, and then roll evenly evenly brush one to two times glue bottoming (acrylic emulsion or water-soluble building glue and 3~5 times water dilution), do not leak paint, nor brush too much to cause flow or accumulation 3 Putty (local) If the bottom is dry, putty can be used to find the uneven place 4 When the putty is fully applied, the putty shall be applied first up and then down According to the basic situation and requirements, the putty shall be applied twice or so, and each time shall not be too thick or leave any trace 5 Brush the bottom coating, first of all, mix the bottom coating, and use the roller brush, but also not too thick 6 Brush the surface coating The surface coating shall be diluted and stirred evenly according to the required proportion When the wall needs color separation, first pop up the color separation line with a powder line bag or an ink bucket Leave about 2cm space at the color intersection when painting One person shall dip the coating with a roller brush to evenly coat, and the other person shall then use a typewriter to spread the marks and splashes The bottom penetration and sagging shall be prevented Each painting surface shall start from the edge Brush to the other side and finish it at one time to avoid joint marks After the first time is completely dry, paint the second time Generally, brush the paint for three times or so This is also determined by the specific situation, and it is successful Construction process of exterior wall coating - quality requirements: after the completion of the construction process of exterior wall coating, the following phenomena shall not occur in the application of exterior wall coating: first, there shall be no leakage, bottom penetration, powder dropping, peeling, anti alkali, color biting and other phenomena; at the same time, the overall color shall be consistent, dense and uniform; finally, there shall be no sagging, pimples, brush lines and pollution of doors and windows 。 Therefore, the doors and windows should be protected before painting The doors and windows should be covered with plastic film or newspaper The information about the construction technology of exterior wall coating is introduced here I hope this article can help you 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,