Can I brush latex paint for decoration in dog days? What problems should I pay attention to when brushing latex paint in dog days?

The dog days are coming, and the weather temperature is relatively high. At this time, the owner of the decoration will inevitably worry. Can I brush latex paint for decoration in dog days? What problems should I pay attention to when brushing latex paint in dog days?

1, beware of the illusion that the wall is dry

In summer, the illusion that the wall has been completely dried will appear in the wall construction. Before construction, the construction personnel must ensure that the wall foundation is completely dry before proceeding to the next construction. If the wall foundation is not painted, it will easily lead to peeling and cracking of the wall surface.

Solution: If possible, measure the moisture content of the wall with the help of professional instruments, and then carry out construction after reaching the standard. In addition, if the wall is difficult to dry due to high humidity and high temperature, a dehumidifier can be used as an aid to speed up the drying of the wall.

2. Too high temperature affects painting.

The coating and conjunctiva need to be dried at a certain temperature and humidity. Different types of coatings have their best film-forming conditions. Generally, solvent-based coatings should be applied at 5~30℃, and water-emulsion coatings should be applied at 10~35℃.

However, if the weather is too hot in summer, the paint will dry too fast, which will affect the durability of the paint. In addition, due to the high temperature, various decoration pollutants also evaporate quickly. If the ventilation is not good, the concentration of harmful substances in the limited indoor space will far exceed the standard.

Solution: Ventilation frequently. In addition to using more environmentally friendly wall materials as far as possible, please ask a regular decoration company to construct, and also do a good job in ventilation and air purification of the renovated room. If conditions permit, we should make the room as ventilated as possible. If there are no conditions, you can choose indoor ventilation devices and air purification devices, which can reduce indoor harmful gases.

3. Humidity has an influence on painting.

It's rainy in summer, the water vapor is heavy in rainy days, and the wall is wet. In this weather, the wall construction will lead to water vapor infiltration into the paint surface, resulting in the loss of adhesion of the paint film, and the wall is easy to bulge. In addition, if the ventilation is not good, the paint film is easily moldy and stale due to humidity and high temperature. The suitable humidity for coating construction is 60-70. If the humidity is too low, the air is too dry, the solvent of the solvent-based coating evaporates too fast, and the water emulsion coating dries too fast, the conjunctiva will be incomplete and not suitable for construction.

Solution: In case of local bulging, the problem point can be scraped off separately, and the edge of the scraped part should be smoothed, coated with primer, and then brushed again; If the bulging area is large, the original wall should be completely removed, and the interface construction should be carried out after the wall is fully dried.

4. The influence of windy weather on painting

There are many and big summer monsoon, and strong wind will accelerate the evaporation process of solvent or water, which will lead to poor film formation and dust pollution. Painting in high temperature weather in summer can easily lead to the drying speed of the surface layer of paint film much faster than that of the bottom layer, and the uncured paint film is exposed to excessively humid environment, which is easy to be stained with dust or oil.

Solution: scrape or polish the surface of the substrate, remove the wrinkled coating, and brush again after reconnecting.

5. Strong ultraviolet rays have an influence on painting.

Strong ultraviolet rays and high surface temperature of the base layer will cause water or solvent to evaporate too quickly, which will not cause poor film formation and affect the quality of the coating. When the temperature is as high as 40℃, the surface temperature or the outer wall temperature is as high as 60℃. If the materials are not stacked properly and are not ventilated, it is easy to cause a fire. If the painted wall is exposed to the sun for a long time, it is easy to yellow and fade. After exposure, the temperature of the wall is high, and after painting, the temperature of the wall is reduced, and the wall is prone to cracks.

Solution: Paint should be stored in a cool and ventilated place in summer, and the storage container must be sealed. Also stay away from open flames and wire sockets to avoid sparks igniting paint. It is recommended that the purchased paint be used within one month. If you want to buy paint when the activity is favorable, you can place an order first, agree the delivery time with the merchant, and then deliver the paint during the paint construction stage. In addition, avoid sun exposure after painting the wall.