The quality of painting works depend on a lot of factors. Mostly it's depend on the air humidity during the working times. Painting on a surface which has dew will make the material became rusty and reduce the coating adhesion.In the drying periods,high air humidity will also damage the performance of coating.

The manufacturing technique of the painting rooms has a strict temperature and humidity requirement,general requirement for temperature is less than or equal to 28~300C,relative humidity 40~50%.Only the painting rooms meet the condition,a good painting can be produced.