How to make putty in high temperaturer

How to make putty in high temperaturer

For paint applications, high temperatures are definitely not a good thing. Cracking and peeling may occur in the construction under high temperature in summer. This is not necessarily a problem with the product, and it may be caused by a series of problems caused by high temperature. So what should we pay attention to in high temperature construction?

1. Paint construction need to see the temperature

The temperature is very important for the construction of the paint, because the drying of the paint, the filming effect depends on the temperature and humidity, and the film forming conditions of different types of paints, the temperature requirements are also different. The solvent-based paint should be applied at a temperature of 5 to 30 ° C, and the water-based paint should be applied at a temperature of 10 to 35 ° C. Overheated weather can cause the paint to dry too quickly, affecting the final result.

2. The best humidity is 60%

In addition to high temperatures in summer, there is also high humidity, and humidity conditions are equally important for coating applications. In general, the optimum humidity for coating construction is 60% to 70%. The lower humidity is conducive to the film formation of the paint, but if the humidity is too low, the solvent of the solvent-based paint will evaporate too quickly, the water-based paint will dry too fast, and the conjunctiva will not be completely complete, which will affect the wall surface effect.

3. The wall also needs sun protection and windproof

In addition to temperature and humidity, paint construction should pay attention to sun protection and wind protection. The summer sun is strong, and prolonged exposure will easily lead to an increase in the surface temperature of the substrate, which will cause the water or solvent to evaporate too quickly, resulting in an unsatisfactory film formation effect and affecting the quality of the coating. Summer is a typhoon-prone season, and the wind is large and numerous. Gale will accelerate the evaporation of water and will also cause dust to affect the film formation and wall cleanliness.

4. Be careful of the "fake" of the wall drying

In the summer wall construction, there will be an illusion that the wall has dried out. Before construction, the construction personnel must ensure that the wall base is completely dry before proceeding to the next step. If the wall is difficult to dry due to high temperature, the dehumidifier can be used to accelerate the drying of the wall. If the wall is not painted, it will easily lead to peeling and cracking of the wall.

5. Extend the wall surface putty drying time

It is necessary to scrape the putty first before painting the wall. Generally, it needs to be scraped 1-3 times, and the normal drying time is 1-2 days. In the summer decoration, as long as possible to extend the time of the putty dry, generally 2-3 days is appropriate. Because the summer weather is hot and humid, especially when heavy rain arrives, the time for the putty to dry will be lengthened. In addition, when putting putty, you should use a dry cloth to wipe off the water vapor on the wall, try to keep the wall dry, and help the paint on the wall.

6. Finished wall to avoid exposure

The summer temperature is high and the sun is violent. If the wall after painting is often exposed to the sun, it is easy to make the color of the wall fall off, and the white wall will turn yellow. In addition, the exposure of the wall will also cause the wall to heat up. When the wall temperature drops after the painting is completed, the paint surface will crack. Therefore, it is best to avoid exposure to the wall after painting.

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