All construction exterior paint, its adornment effect and coating quality and construction situation of metope, construction method, environmental conditions, etc. There is a close relationship, so construction must pay attention to the following requirements:

One, the basic requirements A construction metope cleaner must be cleaned and devoid of grease, dust pollution, metope should be fully dry, no loose and empty drum phenomenon; B, general construction, the PH value of metope should be lower than 9.5, the moisture content should be lower than 10%; C new powder cement mortar walls must be maintained more than 10 days in summer, winter must maintain more than 20 days, cast-in-situ concrete walls must be maintained for 21 days, summer winter must be maintained more than 28 days, before construction; D indoor metope should ensure that no water seepage phenomenon; E old metope is decorated, such as application of the shovel, steel brush, such as tools, clear out the old paint film. F old metope if there are any mold growth phenomenon, the mould will be removed, and then rinse with hot water, then use 5% caustic scrubbing, finally rinse, to prevent mold die, can use 7-10% aqueous solution of trisodium phosphate coating 1 ~ 2 times, can kill bacteria. Can see in G exterior wall coating construction and quality acceptance (JGJ73 building decoration engineering construction and acceptance specification)

Second, climate and construction: A water-based coating construction temperature must be higher than 5 ℃, the best in the above 10 ℃. B in construction of indoor do not under the environment of humidity of more than 85%. C exterior wall construction is expected to 24 hours in the rain not construction.

Three general construction process, interior wall coatings: clean up at the grass-roots level to fill cracks and other defects (note) - full of be bored with child - polishing - besmear brushs cementing primer (note) brush to brush the first line of paint, the name of the second coating (note) : such as metope hole defects such as cracks, can be directly batch embedded putty; The construction requirements of higher can besmear brushs metope cementing primer

Four, exterior wall paint general construction process: A thin layer of paint (second from the bottom surface method) clean and repair at the grass-roots level to besmear brushs primer (A), (2) B stratified besmear brushs paint coating (second from the bottom one side) middle relief type aggregate to flatten processing, cleaning and repair at the grass-roots level to besmear brushs primer (A), middle thick quality coating (orange peel pattern)