Traditional Culture Encyclopedia - Weather forecast - I can't draw because of the weather.

I can't draw because of the weather.

Can I paint the walls in rainy days? Rainy days are not suitable for painting, because rainy days and humidity will affect the quality of painting. Interested friends come to learn more.

1. Can I paint the walls in rainy days?

Don't draw when it rains.

For wood products, whether it is varnish or nitrolacquer when mixing oil, try not to brush it in rainy days. Because a layer of water vapor will condense on the surface of wood products in rainy days. If you paint at this time, water vapor will be wrapped in the paint film, which will make the surface of wood products turbid. For example, brushing nitrocellulose paint in rainy days will lead to uneven color; It just turns white when painting.

If you must meet the deadline, you can add a certain amount of whitening powder to the paint. White powder can absorb the moisture in the air and accelerate the drying speed, but it will also bring some negative effects to the engineering quality. Therefore, under normal circumstances, even the modest construction team should do something else first or temporarily stop work for two days, and try not to do painting work when it rains.

In addition, although rainy days have little effect on wall painting, we should also pay attention to extending the drying time of the wall after the first painting. Generally speaking, the normal interval is about 2 hours, and the rainy days can be appropriately extended according to the weather conditions. Many process steps in decoration have a "technical intermission time". For example, cement needs a 24-hour solidification period, and every time putty is scraped, it has to go through a drying period, and it can be scraped again after each drying. The paint also needs to be dried thoroughly every time before being brushed for the second and third time. Therefore, in rainy days, the intermittent time of this technology will generally be extended, so we must wait patiently.

Second, can I brush latex paint on cloudy days?

1. Generally speaking, when the air humidity is greater than 85% and the moisture content at the grass-roots level is greater than 10%, construction cannot be carried out. Especially in rainy days, it is best not to construct, and the air humidity is definitely relatively high.

2. Latex paint has a film-forming period and a drying period, which are almost synchronous under normal air humidity. If the air humidity is higher than 85%, the film-forming period has passed and the latex paint is not dry, then the film-forming is not good, and the latex paint wall will be pulverized in the future.

3. Therefore, it is best to brush latex paint on sunny days, and every working procedure is one day apart. Cloudy days also depend on whether the air humidity is high. If you don't want to do it, you'd better dry the house with a stove.

4. The latex paint is basically dry after two hours and three days, and the interval between primer and topcoat is 8- 10 hour.