What matters should be paid attention to in winter paint construction?

Painting construction at home, whether it is too hot or too cold, may cause painting construction quality problems. Like winter now, the cold weather will lead to the paint drying time is too long, the performance of the paint can not be fully played, and the expected effect can not be achieved. As long as it is handled well, it can be painted in winter, but it is more complicated than summer. This is nothing for those who urgently need to live in a new house. I specially interviewed the R&D personnel of Sanshu Coatings, and the following four points should be paid attention to in winter coating construction:

1, in the process of paint construction, pay attention to the control of temperature, too low a temperature will cause some problems. Under normal circumstances, his uncle requires the painter to completely dry the putty before proceeding to the next process, in order to ensure that the paint can achieve ideal painting performance. In winter, the indoor temperature of painting, the indoor temperature of varnish construction and the ambient temperature of paint construction shall not be lower than 8 degrees, which is the minimum construction standard of paint. Once it freezes outdoors and the indoor temperature is too low, don't paint it, so as not to freeze immediately after painting and damage the paint film. It should be noted that if the indoor temperature does not meet the requirements, some measures need to be taken, such as turning on the electric fan, oven or heating. The temperature must be guaranteed, otherwise the paint effect of the brush will be very bad, and the function after painting will also be affected.

2. Temperature and humidity should be considered in winter. Moisture or dew on walls or surfaces. If the wall paint or primer is brushed directly without treatment, the temperature rise will form small bubbles and crack, resulting in peeling and peeling of the wall in the later stage. Because the weather is dry in winter, the putty on the wall should not be scraped too thick. Because the indoor air is dry and loses water quickly, it is easy to cause hollowing, cracking and inequality on the wall. The product research and development personnel of Sanshu Paint told us that it is best to treat the wall putty at a relatively high temperature to avoid the newly scraped putty from freezing. After the first putty is completely dried, scrape it for the second time. After the putty is completely dried for the second time, carefully polish it with sandpaper. If the wall is partially sunken, it is best to repair the wall with gypsum powder and white latex. When there is a big crack in the wall, cloth strips should be pasted in some places first, and then putty should be scraped. Usually, the putty on the wall will be scraped three times, and the next process can only be carried out after the putty is completely dried. Brush the paint when the putty is not dry, and the wall is easy to "sweat". If the wall is not completely dry, it will be pulverized, cracked and wrinkled within two days after scraping putty. When the time comes, it is necessary to shovel the wall again and do it again, which is not worth the loss, so the construction must be strictly controlled.

3, winter is coming, painting is more troublesome, mainly because the temperature is too low and the drying time is long. Therefore, it should be noted that the indoor temperature should not be too low, and a suitable temperature is needed when painting. Be sure to buy thinner for winter in winter. The same is true when using paint. Be sure to buy winter products, and the quality must pass the standard. Due to the difference in temperature, in order to facilitate painting construction and improve the quality of paint film, the products will be adjusted slowly in summer and slightly faster in winter. In addition, the construction should be carried out in strict accordance with the requirements of the product manual, and the coating and diluent provided on the label should be prepared. The prepared paint can't be kept for too long, because it is dry in winter, which will affect the humidity and gloss.

4. Pay attention to painting and ventilation in winter. Because of smog weather and dust pollution in winter, it is not suitable for ventilation at every time, so the best time for ventilation after painting in winter is 10 from morning to 4 pm. It is usually cold in winter, and the doors and windows are closed during construction. It can effectively reduce the concentration of dust particles in the air, which also reduces the amount of dust attached to the paint surface, so the paint surface effect is very good. However, in the process of paint drying, the ventilation time must be strictly controlled and appropriate.

There are many problems to consider in winter, and the above are the main precautions for brushing your teeth in winter. Pay more attention to other small aspects. After all, it is not summer, the drying time is fast, and the problems appear quickly. Once a problem occurs, it can be found in a short time. If the basic work is not done well in winter, it may take too long to find it, which may lead to finding it too late. If there is no harsh environment in winter, you can decorate it with wallpaper first and then paint it in summer.