Common knowledge of coating: common construction problems and solutions of putty

Core tips: 1 Why should the putty be kept for 5 minutes after opening? 1 As the putty contains a certain proportion of high molecular polymer and other dry powder additives, these materials should be fully absorbed and dissolved to play their role and achieve the best effect 2 Because the powder particles are fine, it needs a certain water absorption time 3 Eliminate the generation of bubbles 2、 The strength of putty is not enough, and the reasons for powder lifting (powder dropping): 1 The amount of water added is not appropriate 2 Too much back and forth scraping 3 The water absorption of the base surface is too large 4 The weather is hot or dry 5 The putty is not evenly mixed Solution: 1 When opening, follow the instructions Paint agent, top 10 Chinese wall paint brands Recommended introduction: interior wall paint and exterior wall paint can achieve beautiful, clean and pleasant effects, but the effects in different environments are different, so the color of the paint will be different There are ten brands of Chinese paint, ten brands of global paint, ten brands of Chinese wall paint, and ten brands of Chinese paint, Famous trademark of Chinese paint and coating In private rooms, most of us choose according to our own personality, personal hobbies and living habits The younger generation will choose the interior wall paint with rich colors and bright colors, while the older ones will have some working experience Paint Home News: 1 Why should putty be allowed to stand for 5 minutes after pulping? 1 Because putty contains a certain proportion of high polymer and other dry powder additives, these materials should be fully water soluble to play their role and achieve the best effect 2 Because the powder particles are fine, it needs a certain water absorption time 3 Eliminate the generation of bubbles 2、 The strength of putty is not enough, and the reasons for powder lifting (powder dropping): 1 The amount of water added is not appropriate 2 Too much back and forth scraping 3 The water absorption of the base surface is too large 4 The weather is hot or dry 5 The putty is not evenly mixed Solution: 1 Add water according to the proportion in the instruction manual when opening 2 Master the construction method and try to reduce repeated scraping 3 Before construction, the base surface shall be wetted and maintained after construction 4 Before construction, the base surface shall be wetted and maintained after construction 5 Mix the putty evenly according to the mixing method 3、 In the process of putty construction, the slurry dries faster because: 1 The slurry is not evenly mixed and does not stand after mixing 2 Too much water is added at the initial stage of the opening, and when the powder is added for mixing, the powder fails to fully absorb water 3 The water absorption of the base surface is very high or the weather is hot and dry Solution: 1 When mixing, use electric mixer to mix evenly At the same time, pay attention to that the powder at the bottom and corner of the barrel should be fully stirred until it is even and does not form particles Then stand for 5 minutes and mix slightly before use 2 Do not add too much water at the initial stage of opening If the slurry is too thick, add clean water appropriately, and adjust the slurry's dilute consistency with water as much as possible 3 Moisten the base surface before construction 4、 There are pores or bubbles after the putty is applied 1 The slurry gas is brought into the slurry during mixing 2 The powder is fine and easy to produce bubbles 3 The base surface is dry or has high water absorption 4 The time interval between two times of construction is not enough, that is, after the first time of construction, the second time of construction will be carried out without surface drying Solution: 1 The powder should be kept for 5 minutes after mixing 2 When the base surface is dry, it shall be moistened with water in advance 3 The construction of the next layer can only be carried out when the construction surface of the previous layer is dry (about 2-4 hours) 4 After the putty is applied, the air hole can be removed by back pressing with the spatula 5、 The reasons for cracks in putty layer: 1 Large deformation of base surface or cracking of base layer 2 The base surface is not clean 3 Too thick in one batch 4 The weather is hot or dry, the base surface temperature is too high, and the putty layer is too dry 5 The solution to the excessive thickness of putty in one batch: 1 Make the base surface stable or repair the cracks in advance 2 Clean the base course 3 Each layer should not be too thick 4 Before construction, the base surface shall be properly wetted to reduce the temperature of the base surface 5 The construction thickness of each layer of putty is 0.5-1mm, and the total thickness is not less than 1mm Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant coating news and coating, diatom mud, paint coating, coating technology, fire retardant coating decoration knowledge and decoration renderings,