Flexible putty characteristics and construction methods

Now when renovating the house, there are a lot of materials to use, so that its wall decoration out of the effect is very good, flexible putty is a good product, flexible putty by high-quality cement, fillers, synthetic polymers and selected additives, etc. made, according to the flexibility and waterproof performance of putty, divided into ordinary external wall putty, flexible resistance Crack putty, flexible outer wall putty and waterproof outer wall putty, when using to add 30% of the water stirring evenly can be;
Flexible putty features
01
water resistance
external wall insulation system in the natural environment, often due to water damage, putty in the outer wall insulation system surface layer, putty layer outside only a thin layer of paint, external wall insulation system in the Actual use will often be damaged by the outside world, such as impact, slugs, coating surface is easy to be destroyed, so that putty layer exposed in the natural environment, when encountering rain and snow and temperature sudden rise and fall and other weather, putty layer will be washed by rain, repeated freezing and melting damage resulting in skin, shedding, cracking and other problems. Therefore, in order to resist the destruction of water, the external wall insulation system requires putty layer has good water resistance, can prevent the outside water into the putty layer soft, fall off, thus maintaining the stability of the system, and flexible putty has a very good water resistance
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02
Flexible
exterior wall insulation system has long been subjected to sharp temperature changes, the thermal stress is considerable, this thermal stress is mainly manifested in the surface layer. Because the insulation performance of the insulation layer is particularly good, its surface temperature in summer can be as high as 80 degrees C, the summer after the continuous sunny days of sudden rainstorm caused by the surface temperature changes can reach as much as 50 degrees C, the summer high temperature will accelerate the aging of the surface layer, so the insulation surface layer is prone to cracks. Through theoretical research and practical application summary, "
rigid waterproofing technology route
" is the main cause of insulation surface cracks, under the influence of this technical route, the material used for pre-stress, high strength, high elasticity mod, did not leave a way out of the full release of thermal stress.
construction method
1, treatment: first clean the substrate, require clean and smooth.
2, add dry powder and water to the container, stir well with special tools, set aside for 5 minutes, and then stir again, putty dry powder plus water for 30%.
the order of feeding: first add water and then feed.
the scrape of putty: scraping is a method of scraping putty with a wipe, scraper or greas knife.
3,
the main point of scraping putty is solid, flat, light.
the putty is in close contact with the base, firmly bonded and smooth and flat surface to reduce the amount of polishing work. When the grass-roots absorption is strong, the bottom coating should be closed before scraping the putty, so as not to be too much water and glue in the putty by the grass-roots absorption, affecting the adhesion of putty.
4,
good scraping tool tilt, force uniform, to ensure that the putty is full.
in order to avoid putty contraction is too large, cracking and falling off, a batch scrape should not be too thick, according to the characteristics of different putty, thickness of 0.5 to 1.0mm is appropriate.
5,
of putty
: grinding refers to the grinding material for the ground surface of the coating process. It has a great influence on the smoothness, attachment and grass angle and line of the coating. In order to achieve the desired effect of grinding, the appropriate grinding methods and tools must be selected according to the quality requirements of different processes. Grinding must be done after the base or putty has dried, so as not to affect the operation of the adhesive sandpaper.