Summer high temperature and high humidity, how to be bored with child to do!

With the advent of summer, the north and the south of China has always been a 'hot day'. For the construction industry, the summer temperatures soared, the test is end at the other end of rainfall. Or heavy rain, like rain, the whole country indiscriminately, watching the sea. Or the weather is hot, China's exposure to the sun. As indispensable to the construction process, if there are defects putty layer construction effect, exterior wall decorative surface of the overall effect will be greatly reduced. We know temperature should be bored with child construction environment requirements is greater than 5 ℃, less than 35 ℃; Air humidity is less than 60%, the basal humidity less than 10%. ▍ 'high temperature and rainy' non ideal construction state what bad consequences? High temperature exposure exposure in summer, the temperature is too high, not only the base material is easy to dry, water absorption speed, strong sunshine will also accelerate the putty water evaporate. Be bored with child after construction surface drying too quickly, leading to a batch of scrape peeling, powder fell intensity difference ( Insufficient water curing) , batch after cracking ( Thickness of the inner surface dry and wet) 。 Rain more tide, however, if the weather is wet for a long time, high air humidity or moisture content is too high, at the grass-roots level affects the drying speed of be bored with child. If the current layer is not dry, and build the next layer, it's easy to cause the surface bubbles and peeling. Under the moist environment maintenance, be bored with child strength will rapidly rising at the same time, hard to grind the surface drying. Let us first understand the be bored with child construction method is correct. According to the roughness of substrate, blow be bored with child usually need two or three times, but a not too thick, otherwise easy to crack. Partial thin layer of putty scraping, more conducive to improve the strength and batch after scraping putty layers of delicate state, at the same time, reduce the risk of cracking. In order not to let the environment affect the workability of be bored with child, what should we do? Ensure basic level processing good drying: water content is less than 10% at the grass-roots level weak base: ph value is not more than 10: base should be strong, no crack, dusting, empty drum, powder, peeling, cracking of lime and the old coating adhesion is poor. Cleaning: clean at the grass-roots level, the surface dust, floating pulp, oily be soiled, rusty spot, mildew spot, salt precipitation, moss and other sundry. Flat: at the grass-roots level surface level off, the vertical elevation, Angle of Yin and Yang, vertical square, right edges don't fold, points the same seam depth, horizontal, flat, vertical. Deviation should be allowed to meet the requirements, the surface should be smooth, not just. The spa to eliminate the influence of high temperature drying 1. In construction of exterior wall putty, the interface agent closed form a complete set of available at the grass-roots level, or two hours before the be bored with child construction wet with water, each batch of be bored with child blow dry with water after curing. 2. In accordance with the recommended the proportion of mixing, let stand for 10 minutes, stirring again use after curing. 3. Suggest to use putty now. It is recommended to 1. 5 hours with the putty has been prepared. 4. Avoid construction under the environment of high temperature and direct sunlight. 5. Under the high temperature weather, can not affect scraping the viscosity of cases, add more water, to alleviate product drying too quickly during the period of construction problems. Rainy days and humid environment requires patience. 1. Suggestions according to the interval extension construction environment humidity, fully maintenance, to ensure that each coating to reduce rework and repair. 2. Use multilayer thin coating, prolong the curing time, do a good job of each layer after construction ventilation. When necessary, using exhaust fan to increase air flow. 3. In construction of interior wall putty, if use waterproof putty, should be in the final after a putty dry grinding in a timely manner. The gap between the batch scratches and polishing shall not exceed 48 hours. Finally, is particularly important to remind everyone, in addition to the manual, keep on site is also very important. Outdoor stacking putty ( Only cover) with rain wear Storage method is the most common mistakes. It seems to have a rainproof measures, but in fact it