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I've done a lot of this in your family. The black stuff you call is generally the smoke sticking to mosquitoes and flies, or the feces pulled by flies. If you just batch two putty, it will definitely turn yellow.
Your painter's practice is probably to brush a leak-proof glue on the wall, and then batch putty on both sides, beat sandpaper, brush primer, and brush colored latex paint, if so, he can still be a master. It will not turn yellow after brushing the leak-proof adhesive.
If you paint the wall directly with colored latex paint, the best thing to do is to brush the primer first to ensure that the color is uniform. It is more reasonable to contract labor and materials for one square meter. Didn't blackmail you.
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Landlord: Hello!
I'm a paint technician. Your question, I'm telling you exactly, that's what must be done. Because there is no sealing primer, it will affect the hiding power of the topcoat, which will also affect the uniformity of coloring.
At the same time, because of the sealing without primer, the topcoat will fade quickly. Not resistant to yellowing. The paint master really uses the primer to add you two dollars a square is not expensive, I am afraid of using those 806 paint to act as 806 The real price is only 30 40 (4 5 gross square barrels, the worst cost price of the primer is 70 yuan barrels, plus the freight sellers are 110
The financial cost is only 1 yuan, and he will transfer you 3 cents if he calculates 7 cents manually. 806 will be very silky when the brush can't cover the bottom, it will be very white when it dries, and the color will be dark first and then shallow, because it is all made of flying calcium powder and white latex. Be mindful of yourself in case you cut corners.
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There is no need to rent it to others, if you live by yourself, it may discolor the latex paint for a long time, so look at it yourself!
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OK. But dark colors don't work
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Scrape the original wall clean, and then scrape 2-3 putty, the latex paint is directly brushed with a good color, and I haven't heard of any primer. I feel like I'm going to be cheated.
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There is an impact, you should first remove the previous shovel in the re-scraping, the price depends on what paint is used.
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Now many owners generally have two ways to deal with this wall, one is directly pasted with wallpaper, one is directly painted, with good coverage of latex paint or can, excessive, if the decoration to the age, the conditions are still allowed, redesign and decorate the answer given by the person, this construction process is not correct. The decoration sequence process is reversed, the ideal decoration effect cannot be achieved, and it is easy to rework if it is not done well, so it is very important to decorate according to the process order.
<> use a special ruler to level the baseboard base, glass fiber mesh cloth for trunking, and gypsum board ceiling seam pasting; Plaster leveling with large area leveling, waiting for the set door and custom wardrobe to be installed. Is it to scrape putty on the wall, install the wardrobe, door, and baseboard and then paint latex paint? In this question, the order of the installation of the wardrobe, the installation of the door, the installation of the baseboard and the painting of latex paint is asked.
So below the home miscellaneous altarDyeing furniture, polluting decoration phenomenon. In addition, if you install furniture such as wardrobes and then paint latex paint, it is difficult to brush the corners and corners, especially when your latex paint is darker, and even the color will be uneven. Brush latex paint first, brush the wardrobe or brush more than one in order, hit the wooden floor keel, make a fixed wardrobe, batch putty, spray latex paint, connect lamps, wooden doors, lay wooden floors, and press the baseboard.
I have to admit that decoration is a troublesome matter, but no matter how troublesome it is, you have to be patient to get it, otherwise it will be a big trouble to rework in the end, or it may be uncomfortable to live after completion.
Our new house is built to be painted, but also to install the cabinet, wardrobe according to my previous construction experience, first brush latex paint, let the master adjust the color when leaving a part of the adjustment for later repair, because there will be some bumps before moving in at home, and so on the home furniture, household appliances these are all in, let the latex paint if the door is installed first, there is a benefit to the wall painting, that is, after the door sleeve is fixed, the wall leveling is more obvious, When painting, it can repair the uneven wall surface, so that the wall and door cover are more flat and beautiful; In particular, door sleeve lines are generally difficult.
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Twice. First use a roller to dip water in the wall ceiling and roll it again, then use a shovel to shovel off the white ash, wait for the foundation to dry thoroughly before making putty and brushing latex paint.
It must be full of putty, and the original wall white ash should be shoveled off before scraping the putty, the specific method is: first use a roller to dip water in the wall ceiling to roll again, and then use a shovel to shovel off the white ash, and then make putty and brush latex paint after the foundation is dry.
If you want the wall to be flat and free of cracks, then batch putty as a whole (preferably on both sides). After repairing the wall, you will be dissatisfied, and you will have to start again.
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Scraping putty is one of the methods of interior wall decoration, scraping putty on the wall to ensure that the wall surface is flat. Generally, scrape three times, and after drying, polish it with sandpaper. This step is carried out before the latex paint is applied.
Scraping putty refers to the most important step in the treatment of the base layer by filling or overall treatment to remove the uneven part of the surface of the base layer and keep the wall flat and smooth.
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Kiss! Hello, happy to answer your <>
Pro-latex paint can not be directly scraped putty, because the surface density of latex paint is very high, not suitable for putty adherence, if you directly batch putty brush latex paint suggestion: before re-batch putty, should be brushed 1 time glue, and then batch putty, otherwise, after scraping the putty is not firm. Here's how to deal with it:
1. Before scraping putty, check the construction of the wall at the beginning to see if the appearance will be uneven, cracked or falling off. If this is the case, it must be repaired before construction. Also, there should be no impurities and dust on the wall.
2. Moisten the wall before construction, moisten the wall with water to achieve thorough wetting. This can prevent the problem of cracks in the wall caused by drying when scraping putty. 3. The process of renovating the wall is mainly for the old wall, and the wall for a long time is easy to mold and peel off.
Before the construction of this kind of wall, the exterior wall skin should be removed, and then putty should be scraped. Hope mine can help you <>
Do you have any other questions?
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Summary. Hello, can you scrape putty on the latex paint.
It is not possible to scrape putty directly on the latex paint, because the surface of the latex paint is very smooth, which will affect the adhesion of the putty, thus forming a compartment, causing the putty to fall off, and it is also easy to cause the putty to be alkaline, resulting in the wall becoming flowery.
Can you scrape putty on a wall that has been painted with latex paint?
Hello, can you scrape putty on the latex paint, you can't scrape the putty directly on the latex paint, because the surface of the latex paint is very smooth, which will affect the adhesion of the putty, thus forming a compartment, causing the putty to fall off, and it is easy to appear putty anti-alkali, resulting in the wall becoming flowery.
It is recommended to remove the latex paint coating on the wall before scraping the putty, and treat the base surface of the wall to ensure that the base surface is clean and dry, and then scrape the putty in batches, so that the putty layer will not fall off. If you are renovating the wall, you can also sande the original wall and apply latex paint.
How to deal with the wall before scraping putty 1, before scraping putty, the base layer should be cleaned first, the dust and impurities on the base layer should be cleaned, and then the interface agent should be painted, and the thickness and uniformity of the interface agent should be paid attention to in the process. 2. If the construction is carried out in summer, before applying the interface agent, it is necessary to apply clean water to make the wall more moist and avoid cracking of the putty layer due to the excessive water absorption of the wall when scraping the putty. After the cement wall construction is completed, it should be cured for a period of time before the putty can be painted.
3. If the old wall is renovated, because of long-term use, the wall may be moldy, in this case, the wall skin should be removed first, if the wall is still cracked, it is also necessary to lay the mesh cloth at the cracked position to avoid the problem of cracking on the wall again.
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Hello dear, it is usually feasible to scrape putty on a wall that has been painted with latex paint. But there are two questions to consider:1
Wall pores become smaller: Because the coating of latex paint is relatively thin, after brushing the latex paint, the original pores of the wall will be filled, and the wall water absorption is weak, which will affect the adhesion and durability of the subsequent putty. 2.
The problem of sticking wallpaper: If the purpose of scraping putty is to paste wallpaper, it is necessary to note that the wall surface should not be too smooth, otherwise the wallpaper is easy to fall off. Therefore, it is recommended to apply a small area of putty on the wall before repairing the wall to check whether it can be firmly adhered to.
If the putty falls or peels off, it is necessary to adjust the method of scraping the putty, such as using a special putty material, or sanding the wall first.
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The putty is scraped twice and wants to stop, and after a period of time, it is sanded and brushed with latex paint.
Yes, the reason: because of the wall scraping putty.
The key lies in leveling, said to scrape the putty powder several times.
In fact, the number of times in the back should be in the area where the front is not smoothed out. After the putty powder is scraped, it is polished and polished after drying, and the grinding and polishing is to make the wall smooth and clean. Whether it is done or not can be checked.
The inspection method can be viewed with a 200-watt white fabric lamp pressed against the wall to see if it is leveled. Generally, it is necessary to do it two to three times, and it is generally three to five days to dry at a time, and it will be a little longer in rainy days. Scraped putty powder, not prescribed light but to carry out ground leveling.
The putty powder for brushing the wall is generally required to be scraped three times, but each batch of putty is required to be done at the same time and then the next time it is brushed. When batching putty, you must avoid cold wind blowing, so that although it looks like the wall can be dried, in fact, it is to shut the water of the wall in the wall, if you carry out the next operation at this time, until the winter heating, the original wall material will begin to volatilize, the phenomenon of "cracking".
When the bottom layer is fast and strong, it is necessary to carry out a closed primer before brushing the putty powder, so as to prevent the plastic particles in the putty powder from being digested and absorbed by the bottom layer too much, which will endanger the adhesion of the putty powder. Master the slope of the imitation Zen finger tool when brushing, and use it evenly to ensure that the putty powder is rounded. In order to prevent the putty powder from being too large, cracking and falling off, it is not necessary to be too thick for brushing at one time, and the thickness is the most suitable for 0 5 1mm according to the characteristics of different putty powders.
Do not brush back and forth excessively, so as not to roll the skin, fall off and squeeze the plastic particles in the putty powder, and seal the surface layer is not easy to dry out.
According to the characteristics of the coating and the condition of the base layer, select the appropriate putty powder and special tools for brushing, and use the putty preparation knife to make up for the bottom hole and gap, the ring finger.
Clamp the cutter head, press the putty powder into the shortcomings with all your strength, spread and fill it, and scrape the putty powder around it neatly to avoid putty powder marks as much as possible.
When batching putty, do not pollute the road surface, footboard, living balcony, balcony, window door and laminated glass.
and other sub-items that have been completed. The general putty powder batch embedding should first use slaked lime.
After leveling, and then batch general putty powder, although this practice can be cost-effective, but after that, it has buried hidden dangers. The slaked lime in the walls will be carbon dioxide in the air.
reaction to form calcium bicarbonate.
Water absorption and expansion, causing the wall to crack and cause water leakage, seriously endangering the normal life of residents.
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It is best to remove the old wall and then scrape putty on the wall that has been brushed with latex paint. If you want to save money, polish the old wall with coarse sandpaper 1 time, and then scrape it 2 times with better putty.
1. Painted walls, under normal circumstances, it is not easy to hang putty powder. Putty powder is water-soluble, and it is not easy to bond with paint, and if it is not removed, it will leave hidden dangers on the wall in the future. The wall that has been painted with wall paint has a smooth surface and is not easy to adhere, but when the seasons change and the temperature difference is large, it will slowly fall off in pieces, which is very difficult to remedy.
2. In China, people are accustomed to use synthetic resin emulsion as the base material, water as the dispersion medium, add pigments, fillers (also known as physique pigments) and additives, and the coatings made by a certain process are called latex paints, also known as latex coatings. Latex paint is a water-based coating, their paint film performance is much better than solvent-based paint, accounting for half of the organic solvent of solvent-based paint is replaced by water here, so the toxicity of organic solvent is basically solved by latex paint.
4. Latex paint is made of some polymer aqueous solution, in addition to water and safe different types of polymers or polymers, it also contains a small amount of emulsifier and trace unpolymerized free monomer, free monomer is some volatile small molecule substances, there are different degrees of toxicity problems, the concentration of free monomer of environmental protection paint is controlled below, and the dosage of additives is more than 2% to 3%; Less only accounts for between 0 05 and 0 1% of health.
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