Coating common sense: how to construct exterior wall coating?

Core tip: how to construct the exterior wall coating? The first is the basic treatment The base course shall be firm and flat If there are holes, cracks and pockmarks, 107 glue putty (cement 107 glue), latex putty (cement latex) or other water-resistant putty shall be used to repair and level the base course (the putty shall not be too thick, and the wall shall be leveled, which will cause cracks on the surface) After drying, it shall be grinded, sharpened and cleaned The moisture content of the base course shall not be more than 10%, pH value is 7-10 If the moisture content of the base course is large or the soluble salt and alkali are too strong, the wall coating will not be firmly bonded, and even discoloration, blistering, peeling, alkali returning and other phenomena will occur from 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 Home of coatings: how to construct the exterior wall coating? The first is the basic treatment The base course shall be firm and flat If there are holes, cracks and pockmarks, 107 glue putty (cement 107 glue), latex putty (cement latex) or other water-resistant putty shall be used to repair and level the base course (the putty shall not be too thick, and the wall shall be leveled, which will cause cracks on the surface) After drying, it shall be grinded, sharpened and cleaned The moisture content of the base course shall not be more than 10%, pH value is 7-10 If the moisture content of the base course is large or the soluble salt and alkali are too strong, the wall coating will not be firmly bonded, and even discoloration, blistering, peeling, alkali returning and other phenomena will occur Due to the materials used and other reasons, some exterior walls will appear the phenomenon of back alkali and white frost, which must be removed, cleaned and dried before construction A large area of the outer wall is generally set with a separation line Before coating construction, the dust and oil stain on the wall must be removed Before the construction of exterior wall, the area to be painted shall be calculated and the amount of paint shall be determined to ensure the color consistency of the wall and avoid color difference during the repair The coating construction shall be carried out from top to bottom to prevent the coating from dropping on the wall and causing pollution; the separation line shall be minimized to reduce the joint mark, and the scaffold support point shall be removed, displaced and repaired before the coating construction to avoid the color inconsistency of the coating surface The exterior wall coating works shall be constructed in accordance with the requirements of "one bottom and two sides" (one bottom coating and two surface coating), and the number of surface coating can be increased appropriately according to the requirements of the works Construction environmental conditions The construction, drying and conjunctive of building coating should be carried out under certain temperature and humidity Generally, the conjunctive performance of latex coating is tested under the conditions of 23c ± 2C and 60-70% relative humidity Generally, the lowest temperature of coating is more than 5C The most suitable temperature is 10-35c, and the construction humidity is 60-70% In addition, do not work under direct sunlight, especially in summer, the surface temperature under direct sunlight will be higher, and the moisture evaporation will be too fast, which will affect the poor film formation of coating Large wind is not suitable for construction, it will accelerate the evaporation process of water, and the coating is easy to be stained with dust 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,