A collection of common construction problems and solutions for putty

First, why do putty pulp after 5 minutes to sit?
1, because putty contains a certain proportion of polymer polymers and other dry powder-like additives, these materials should be fully absorbed water dissolved, in order to play its role, to achieve the best results.
2, due to the fine powder particles, need a certain amount of water absorption time.
3, the elimination of bubble production
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, putty strength is not enough, powder (drop powder)
reason:
1, water is not appropriate.
2, too much round-trip scraping.
3, the base water absorption rate is too large.
4, the weather is hot or dry.
5, putty stirring unevenly.
solution:
water in proportion to the instruction manual when using 1 and pulping.
2, master the construction method, to minimize repeated scraping.
3, before the construction of the base surface wet, after the construction of maintenance.
4, before the construction of the substation wet, after the construction of maintenance.
5, stir the putty well.
, putty construction process, the slurry dried faster
reasons:
1, the slurry stirring is not uniform, the slurry stirring did not sit.
2, the initial addition of too much water, and then add powder seasoning, powder can not fully absorb water.
3, the substation water absorption rate is very high or the weather is hot and dry.
Solution:
1, when stirring, the application of electric mixer stirring well, while paying attention to the bottom of the barrel and corner position of the powder to be fully stirred, until evenly no granulation, and then set aside for 5 minutes slightly stirring can be used.
2, the initial stage of pulp do not add too much water, if the slurry is too thick, can be appropriately added to the water, should try to use water to regulate the thinness of the slurry.
3, wetting the substing before construction.
, putty batch scraping after there are pores or bubbles appear
1, stirring when the slurry gas into the slurry.
2, powder delicate, easy to produce bubbles.
3, the substation is drier or the absorption rate is larger.
4, twice the construction interval is not enough, that is, after the previous construction, no table dry, the second construction.
solution:
1, the powder should be stirred after 5 minutes of silence.
2, when the substation is dry, should be watered and moistened in advance.
3, the previous layer of construction table dry (about 2 to 4 hours), in order to carry out the next layer of construction.
4, putty batch scraping, with the batch knife anti-pressure pores can be removed.
, putty layer cracks
the main reasons:
1, large substation deformation or grass-roots cracking.
2, the base surface cleaning is not clean.
3, a batch scrape is too thick.
4, the weather is hot or dry, the base temperature is too high, the putty layer is drying too fast.
5, putty scraped over the thickness of a batch
solution:
1, make the substring stable or repair cracks in advance.
2, clean up the grass roots.
3, each layer of batch scraping should not be too thick.
4, before the construction of the base surface will be properly wet, reduce the base surface temperature.
5, each time putty construction thickness of 0.5 to 1mm total thickness is not less than 1mm.
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