What are the disadvantages of using paint in rainy and humid weather?

The general principle of paint construction is that the relative humidity should not exceed 85%, and the base temperature should be at least 3 degrees Celsius higher than the dew point temperature. In other words, the weather with relative humidity greater than 85% is not suitable for painting construction.

If paint construction is carried out under such weather conditions, the possible consequences are:

Blister;

Flaking;

The coating surface is white;

Loss of light (should be high light, but turned into low light), discoloration (color change);

Unable to cure normally;

Wait a minute.

Therefore, painting construction in weather with high relative humidity is very risky and should be avoided as far as possible, otherwise it may waste manpower and material resources and bring unnecessary losses. Of course, there are also several kinds of coatings that can work under high humidity, but the price is relatively high, so it can be considered as appropriate.