Precautions for painting in winter, have you collected them?

Temperature requirements
recommended that every brushing should be indoor temperature testing, paint construction wall temperature must not be lower than 5 degrees C, ambient temperature must not be lower than 8 degrees C, for several consecutive days the ambient temperature is less than 8 degrees C is not recommended for construction. If there is heating or other heating mode of the room room room temperature should not be less than 10 degrees C, doors, windows and other places to be closed before construction, such as closure is not good, will lead to doors, windows or wind-affected parts of the crack.
Humidity requirements
to ensure that the wall moisture should not be too heavy (water content can not be higher than 10%), air humidity is less than 85%, so as not to be low temperature, wall moisture volatility can not affect the quality of the paint film, resulting in such as de-powdering, long hair, foaming, cracking and other symptoms
wall grass-roots
the wall grass-roots must reach sufficient maintenance time, requiring more than 4 weeks of winter maintenance. To achieve water content ≤ 10%, pH <10, to avoid watermarking, foaming, alkali and other ills.
Putty powder
in the choice of putty powder should meet the requirements of JC/T3049 "building indoor putty" standard, mainly adhesion should be good, with sufficient strength, not loose, low alkaline (PH less than 10). Batch scraping putty must control the batch scraping thickness, should not be thick batch, each time putty should be in the previous putty dry after the batch scraping. Putty layer must be dry before the bottom, paint construction, to avoid cracking, foaming and other ills.
Smearing requirements
brushing, mixing, air spraying and airless spraying should be strictly in accordance with the construction ratio of construction, and should be fully stirred evenly, strictly prohibited a single thick coating, strictly prohibited to water is too large, to avoid the resulting paint film cracking or powdering. The paint should be kept dry between the two times, so as to avoid caused by hanging and cracking. Recoating time generally requires more than 4 hours in winter, more than 2 hours in summer, rainy and humid weather appropriately extended.
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