The construction of exterior paints is not as simple as interior decoration paints. Outside, if you want to paint exterior walls of dozens of high-rise buildings, you must have special treatment methods. Moreover, the process is also dangerous. Therefore, in the series of steps such as paint painting outdoors, there must be a detailed preparation work, as well as the work of coating arrangements storage, otherwise, it will be very time-consuming and will also threaten the safety of workers. The following small series introduces the precautions for outdoor paint construction preparation and outdoor paint construction.
Outdoor paint preparation
1, structural engineering by the relevant departments acceptance.
2. The outer wall plastering adopts hanging baskets and safety protection facilities. Note that the hanging basket leaves the wall 200-250mm.
3, the wall surface of dust, dirt and other grease clean, and sprinkle water moist. The aerated concrete wall was soaked on the day before plastering (on-site control depending on the weather conditions).
4. The protruding part of the concrete wall is flattened; after removing the honeycomb, pockmark, and loose part, the layers are filled with 1:2.5 cement mortar, and the exposed steel head and lead wire are removed, and the holes of the hand and other holes are removed. Fill tight; cellular, concave, missing edges should be filled and leveled
5, before the plastering must be installed in the pipeline through the walls of the hole in time to install the casing, and use 1:3 cement mortar or brick concrete filling dense, plastering surface then Shun Shunping.
6. Before plastering, check whether the position of doors and windows is correct and whether the connection with the wall is firm. The gap at the joint is densely packed with 1:3 cement mortar. If the gap is too large, add a small amount of hemp knife in the mortar.
7. Check the leveling of the surface of the substrate before plastering, and pop up the control line of the plastering layer on both sides of the big corner and on both sides of the balcony, as a basis for rendering.
8, plastering mortar after strict measurement and mixing system, and its consistency and consistency after inspection before use. Cement mortar must be used before initial setting.
9, before the use of cement must be retested in accordance with the requirements of the specification, if the factory date exceeds 3 months, should review the test and use according to the test results. Unqualified products retired and the use of waste cement is strictly prohibited.
Outdoor paint construction considerations
1. Before the paint is used, check the label and stir it well. After use, the cover must be tightly closed.
2. The storage and construction of paint should meet the temperature conditions specified in the product specification, and should usually be above 5°C. If the paint freezes during storage and transportation, it should be allowed to thaw naturally in a room with a higher temperature, and it must not be baked. After thawing, the paint was confirmed to have no qualitative change before it could be used.
3, paint color is best done by the manufacturer or distributor to ensure the consistency of the color of the batch of paint. If you need to adjust the color on the construction site, you must use the colorant provided by the manufacturer or designated grade or origin, and deploy it according to the use requirements and proportions.
4. Attention should be paid to the finished product protection of the coating project to prevent man-made pollution caused by crossover operations. If the wall surface that has already been constructed is contaminated by dirt, it can be scrubbed gently with a clean, wet cloth, and should be re-applied when it is heavily contaminated.
5. Pay attention to the weather forecast before construction and avoid operating before rain and snow.
6, brushing tools used should be cleaned and properly kept.
Editor's summary: The preparations for the outdoor paint preparation and the precautions for the outdoor paint construction are introduced here. I hope to help everyone. If you want to know more about yourself, you can follow the information on this site.
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